random questions exam 4 a&p

The integrative centers for autonomic activity are located in the A) thalamus. B) pons. C) hypothalamus. D) cerebrum. E) medulla oblongata.

C) hypothalamus.

The cardiovascular reflexes are based in the A) cerebellum. B) medulla oblongata. C) spinal cord. D) midbrain. E) cerebrum.

B) medulla oblongata.

Which structure conducts action potentials directly from a sensory receptor? A) 1 B) 2 C) 3 D) 5 E) 7

A) 1

________ are photoreceptors that convey our ability to see color. A) Cones B) Rods

A) Cones

A person suffering from ________ can see distant objects more clearly than those that are close. A) hyperopia B) color blindness C) myopia D) cataracts E) vertigo

A) hyperopia

Which cranial nerves are involved with eye, head, and neck movements? A) Cranial nerves III, IV, VI, and XI. B) Cranial nerves VI, VII, IX, XI. C) Cranial nerves I, II, and III. D) Cranial nerves III, VII, IX, X, XII. E) Cranial nerves II, III, IV, V, and VI.

A) Cranial nerves III, IV, VI, and XI.

Define dual innervation. A) Dual innervation means that a given body system receives instructions from both the sympathetic and parasympathetic divisions of the ANS. B) Dual innervation means that a given body system has twice the amount of neural stimulation needed to produce an action. C) Dual innervation means that a given body system sends both sensory impulses and receives motor commands. D) Dual innervation means that a given body system receives instructions from both the central and peripheral nervous systems. E) Dual innervation means that sensory neurons and motor neurons are present in the tissue.

A) Dual innervation means that a given body system receives instructions from both the sympathetic and parasympathetic divisions of the ANS.

The region of the cerebral cortex that is medial and deep to the temporal lobe is the A) insula. B) frontal lobe. C) occipital lobe. D) parietal lobe. E) temporal lobe.

A) insula.

Cerebrospinal fluid A) is secreted by ependymal cells. B) is normally produced twice as fast as it is removed. C) is formed by a passive process. D) has almost the same composition as blood plasma. E) is formed by a passive process and has almost the same composition as blood plasma.

A) is secreted by ependymal cells.

Define splanchnic nerves. A) Splanchnic nerves are three groups of nerves — cardiopulmonary, abdominopelvic (greater, lesser, and lumbar), and pelvic (sacral) — that supply the viscera. B) Splanchnic nerves form a collection of three cervical sympathetic ganglia (superior, middle, and inferior). C) Splanchnic nerves form nerve plexuses when they intermingle with branches of the vagus nerve similar to the nerve plexuses formed by spinal nerves innervating the limbs. D) Splanchnic nerves are nerves that innervate intramural ganglia in the walls of the kidneys, urinary bladder, terminal portions of the large intestine, and sex organs. E) Splanchnic nerves carry sacral parasympathetic output.

A) Splanchnic nerves are three groups of nerves — cardiopulmonary, abdominopelvic (greater, lesser, and lumbar), and pelvic (sacral) — that supply the viscera.

What signs and symptoms would be present in a person who has basal nuclei damage? A) They would exhibit decreased muscle tone and loss of coordinated movement. B) They would be unable to taste and smell. C) They would be unable to recognize sounds, such as spoken words. D) They would be unable to move any skeletal muscle. E) They would be unable to control autonomic functions, such as controlling heart rate and blood pressure.

A) They would exhibit decreased muscle tone and loss of coordinated movement.

Collateral ganglia contain neurons that innervate tissues and organs in which cavity? A) abdominopelvic B) vertebral C) lumbar D) thoracic E) cranial

A) abdominopelvic

Postganglionic sympathetic axons release the neurotransmitter ________ at their effector junctions. A) acetylcholine or nitric oxide or norepinephrine B) acetylcholine C) nitric oxide D) norepinephrine E) None of the answers is correct.

A) acetylcholine or nitric oxide or norepinephrine

The ________ is a region of dense bone that surrounds and protects the membranous labyrinth. A) bony labyrinth B) bony callus C) auditory ossicle D) vestibule E) membranous callus

A) bony labyrinth

Cell bodies of preganglionic neurons of the autonomic nervous system are located A) both in the brain stem and in the lateral gray horns of the spinal cord. B) only in the anterior gray horns of the spinal cord. C) only in the brain stem. D) only in the lateral gray horns of the spinal cord. E) only in the posterior gray horns of the spinal cord.

A) both in the brain stem and in the lateral gray horns of the spinal cord.

Where is the spiral organ located? A) cochlea of the internal ear B) semicircular ducts of the internal ear C) tympanic membrane of the middle ear D) utricle of the internal ear E) saccule of the internal ear

A) cochlea of the internal ear

Pupillary muscle groups are controlled by the ANS. Parasympathetic activation causes pupillary ________, and sympathetic activation causes ________. A) constriction; dilation B) dilation; dilation C) constriction; constriction D) dilation; constriction E) vasoconstriction; vasoconstriction

A) constriction; dilation

The transparent portion of the fibrous layer is the A) cornea. B) iris. C) pupil. D) canthus. E) conjunctiva.

A) cornea.

Olfactory organs are located in the nasal cavity inferior to the perforated bony structure known as the A) cribriform plate. B) superior nasal concha. C) frontal bone. D) sphenoid bone. E) nasal septum.

A) cribriform plate.

Injury to the neurons of a collateral ganglion would affect the function of the A) digestive tract. B) heart. C) sweat glands. D) arrector pili muscles. E) pupils.

A) digestive tract.

Drugs known as beta-blockers may be useful for treating A) excessive heart rate. B) excessive salivation. C) depressed heart rate. D) constipation. E) diarrhea.

A) excessive heart rate.

Some neural tissues retain stem cells and thus the capacity to divide and replace lost neurons. Which of these special senses can replace its damaged neural receptors? A) olfaction B) equilibrium C) hearing D) All of the answers are correct. E) None of the answers is correct.

A) olfaction

The primary motor cortex is the surface of the A) precentral gyrus. B) arcuate gyrus. C) corpus callosum. D) insula. E) postcentral gyrus.

A) precentral gyrus.

Two terms that both refer to internal organs are A) splanchnic and viscera. B) splanchnic and ganglionic. C) somatic and preganglionic. D) viscera and somatic. E) sympathetic and parasympathetic.

A) splanchnic and viscera.

Identify the sensory nuclei contained within the corpora quadrigemina. A) superior colliculi and inferior colliculi B) red nuclei and substantia nigra C) anterior colliculi and posterior colliculi D) reticular formation and red nuclei E) cerebral peduncles

A) superior colliculi and inferior colliculi

Trace the gustatory pathway from the taste receptors to the cerebral cortex. A) taste receptors — facial, glossopharyngeal, and vagus nerves — synapse in the solitary nucleus of the medulla oblongata — medial lemniscus — synapse in the thalamus — gustatory cortex of the insula B) taste receptors — hypoglossal, glossopharyngeal, and accessory nerves — medial lemniscus — synapse in the thalamus — synapse in the solitary nucleus of the medulla oblongata —gustatory cortex of the insula C) taste receptors — hypoglossal, glossopharyngeal, and accessory nerves — synapse in the solitary nucleus of the medulla oblongata — medial lemniscus — synapse in the thalamus — gustatory cortex of the insula D) taste receptors — facial, glossopharyngeal, and vagus nerves — lateral lemniscus — synapse in the solitary nucleus of the medulla oblongata — synapse in the thalamus — gustatory cortex of the insula E) taste receptors — facial, glossopharyngeal, and vagus nerves — medial lemniscus — synapse in the thalamus — synapse in the solitary nucleus of the medulla oblongata — gustatory cortex of the insula

A) taste receptors — facial, glossopharyngeal, and vagus nerves — synapse in the solitary nucleus of the medulla oblongata — medial lemniscus — synapse in the thalamus — gustatory cortex of the insula

Which brain regions control reflexes in response to visual and auditory stimuli that are experienced while viewing a movie? A) thalamus and midbrain B) cerebral cortex and basal nuclei C) basal nuclei and hypothalamus D) pons and medulla oblongata E) brainstem and spinal cord

A) thalamus and midbrain

The sympathetic division of the ANS is also known as which of the following? A) thoracolumbar division B) craniosacral division C) resting division D) somatic division E) both somatic division and craniosacral division

A) thoracolumbar division

Which nerve carries most of the parasympathetic outflow? A) vagus nerve B) facial nerve C) glossopharyngeal nerve D) abducens nerve E) occulomotor nerve

A) vagus nerve

What is a generator potential? A) A generator potential is an action potential produced by sensory neurons. B) A generator potential is the depolarization of sensory neurons capable of generating an action potential. C) A generator potential is a very strong stimulus in a sensory receptor that causes the inside of the cell to become positive. D) A generator potential is the repolarization of sensory neurons capable of generating ac action potential. E) A generator potential is an electrical stimulus that propagates from the sensory neuron to the CNS.

B) A generator potential is the depolarization of sensory neurons capable of generating an action potential.

Define corticospinal tracts. A) Corticospinal tracts are ascending tracts that receive sensory information from the internal ear about the position and movement of the head. B) Corticospinal tracts are descending tracts that carry motor commands from the cerebral cortex to the anterior gray horns of the spinal cord. C) Corticospinal tracts are ascending tracts that carry information or commands from the sensory nuclei in the brainstem to the cerebral cortex. D) Corticospinal tracts are descending tracts that carry information or commands from the cerebral cortex to motor nuclei in the brainstem. E) Corticospinal tracts are ascending tracts that carry sensory information from the anterior gray horns of the spinal cord to the cerebral cortex.

B) Corticospinal tracts are descending tracts that carry motor commands from the cerebral cortex to the anterior gray horns of the spinal cord.

________ fills the membranous labyrinth. A) Interstitial fluid B) Endolymph C) Perilymph D) CSF E) Plasma

B) Endolymph

Identify somatic effectors and visceral effectors. A) Somatic effectors are smooth muscle, cardiac muscle, glands, and adipose tissue. Visceral effectors are skeletal muscle. B) Somatic effectors are skeletal muscle. Visceral effectors are smooth muscle, cardiac muscle, glands, and adipose tissue. C) Somatic effectors are skeletal muscle, smooth muscle, cardiac muscle, and glands. Visceral effectors are adipose tissue. D) Somatic effectors are glands and adipose tissue. Visceral effectors are skeletal muscle, cardiac muscle, and smooth muscle. E) Somatic effectors are skeletal muscle, cardiac muscle, and smooth muscle. Visceral effectors are glands and adipose tissue.

B) Somatic effectors are skeletal muscle. Visceral effectors are smooth muscle, cardiac muscle, glands, and adipose tissue.

Give the functions of the superior colliculi and inferior colliculi. A) The superior colliculi control the background muscle tone to the head, neck, and trunk. The inferior colliculi control the background muscle tone to the limbs. B) The superior colliculi control the reflex movements of the eyes, head, and neck in response to visual stimuli. The inferior colliculi control the reflex movements of the head, neck, and trunk in response to auditory stimuli. C) The superior colliculi control the background muscle tone to the limbs. The inferior colliculi control the background muscle tone to the head, neck, and trunk. D) The superior colliculi control the reflex movements of the head, neck, and trunk in response to auditory stimuli. The inferior colliculi control the reflex movements of the eyes, head, and neck in response to visual stimuli. E) The superior colliculi provide subconscious control of upper limb position and background muscle tone. The inferior colliculi processes incoming sensations and outgoing motor commands automatically and helps maintain consciousness.

B) The superior colliculi control the reflex movements of the eyes, head, and neck in response to visual stimuli. The inferior colliculi control the reflex movements of the head, neck, and trunk in response to auditory stimuli.

Taste buds are monitored by cranial nerves A) V, VII, and IX. B) VII, IX, and X. C) VII, VIII, and IX. D) IX, XI, and XII. E) IX, X, and XI.

B) VII, IX, and X.

Bob is struck on the left side of the head and is knocked unconscious. When he recovers consciousness, he can hear individual words but cannot understand the meaning of phrases or sentences. This implies damage to his A) temporal lobe. B) Wernicke's area. C) speech center. D) vestibulocochlear nerve. E) prefrontal lobe.

B) Wernicke's area.

The structure that supports the organ of Corti is the A) tectorial membrane. B) basilar membrane. C) tympanic membrane. D) membranous labyrinth. E) vestibular duct.

B) basilar membrane.

The neural tissue is isolated from the general circulation by the A) choroid plexuses. B) blood-brain barrier. C) meninges. D) dura mater. E) arachnoid granulations.

B) blood-brain barrier.

Which of the following would be an example of higher-level control of autonomic function? A) increased salivation when you smell food that appeals to you B) increased heart rate when you see a person you fear C) dilation of the pupils when you enter a dark room D) gagging on food that does not appeal to you E) a violent coughing attack in response to an irritant

B) increased heart rate when you see a person you fear

Which of the following descriptions best matches the term basilar membrane? A) separates the cochlear duct from the scala vestibuli B) moves up and down when the stapes moves back and forth C) covers over the oval window D) tiny duct necessary for the static sense of equilibrium E) supports the olfactory organ

B) moves up and down when the stapes moves back and forth

What type of neuron of the parasympathetic division exits the brain stem? A) somatic motor neuron B) preganglionic neuron C) ganglionic neuron D) astrocyte E) sensory neuron

B) preganglionic neuron

There are three different types of cones, each one sensitive to different light energies. These cones are designated A) red, white, and blue. B) red, green, and blue. C) red, yellow, and blue. D) red, green, and yellow.

B) red, green, and blue.

The information that is passed from a sensory receptor to the central nervous system is called a A) motor pathway. B) sensation. C) transducer. D) perception E) depolarization of a receptor.

B) sensation.

Which division of the ANS is responsible for the physiological changes you experience when startled by a loud noise? A) central division of the ANS B) sympathetic division of the ANS C) effector division of the ANS D) enteric division of the ANS E) parasympathetic division of the ANS

B) sympathetic division of the ANS

The structure that overlies the organ of Corti is the A) perilymph. B) tectorial membrane. C) endolymph. D) stapedius. E) basilar membrane.

B) tectorial membrane.

What gives eyes their characteristic color? A) the density and distribution of blood vessels in the retina B) the density and distribution of melanocytes in the iris C) the density and distribution of melanocytes in the pupil D) the density and distribution of blood vessels in the vascular layer E) the density and distribution of melanocytes in the retina

B) the density and distribution of melanocytes in the iris

The auditory ossicles connect the A) oval window to the round window. B) tympanic membrane to the oval window. C) stapedius to the tympanic membrane. D) otitis to the media. E) tympanic membrane to the round window.

B) tympanic membrane to the oval window.

An abnormal illusion of movement is called A) nerve hearing loss. B) vertigo. C) cataracts. D) conductive hearing loss. E) myopia.

B) vertigo.

What brain structure is considered to be the headquarters for the ANS? A) pons B) midbrain C) hypothalamus D) thalamus E) medulla oblongata

C) hypothalamus

________ is a temporary cerebral disorder accompanied by abnormal movements, unusual sensations, and/or inappropriate behavior. A) Aphasia B) Apraxia C) A seizure D) Dyslexia E) Parkinson's disease

C) A seizure

An area of the retina that contains only cones and is the site of sharpest vision is the A) optic disc. B) tapetum lucidum. C) fovea centralis. D) inner segment. E) outer segment.

C) fovea centralis.

________ glands are modified sebaceous glands located along the margin of the eyelid that secretes a lipid-rich product. A) Lacrimal B) Palpebral C) Tarsal D) Mucous E) Conjunctival

C) Tarsal

The first step in the process of photoreception is A) the bleaching of cones. B) release of neurotransmitter. C) absorption of a photon by a visual pigment. D) inhibition of the sodium pumps. E) the bleaching of rods.

C) absorption of a photon by a visual pigment.

White matter fibers that pass from one gyrus to the adjacent gyrus are called A) projection fibers. B) longitudinal fasciculi. C) arcuate fibers. D) commissural fibers. E) association fibers.

C) arcuate fibers.

Which of the following is improperly paired? A) mesencephalon — also called the midbrain B) metencephalon — will form the cerebellum and pons C) diencephalon — becomes the ventricle D) myelencephalon — will form the medullar oblongata E) telencephalon — will form the cerebrum

C) diencephalon — becomes the ventricle

Stimulation of the neurons in the celiac ganglion would lead to A) increased heart rate. B) increased gastric motility. C) hydrolysis of liver glycogen reserves. D) relaxation of the urinary sphincter. E) activation of ventral sweat glands.

C) hydrolysis of liver glycogen reserves.

In order for a sensation to become a perception, A) the other senses must be silent. B) the individual must vocalize about it. C) it must be received by the somatosensory cortex. D) it must be received by the pulvinar nucleus of the thalamus. E) it must arrive over fast-conducting nerve fibers.

C) it must be received by the somatosensory cortex.

The optic tracts carry visual information from the retina to the A) preoptic area. B) suprachiasmatic nuclei. C) lateral geniculate nuclei. D) pulvinar nuclei. E) medial geniculate nuclei.

C) lateral geniculate nuclei.

Motor neurons whose cell bodies are within the spinal cord are called ________ neurons. A) preganglionic B) postganglionic C) lower motor D) upper motor E) somesthetic

C) lower motor

The sympathetic collateral ganglia include all of the following except the A) superior mesenteric. B) inferior mesenteric. C) lumbar D) celiac. E) None of the answers is correct.

C) lumbar

The control of heart rate and blood pressure is based in the A) cerebrum. B) diencephalon. C) medulla oblongata. D) cerebellum. E) heart.

C) medulla oblongata.

The tracts that connect the cerebellum to the brainstem are located in the A) thalamus. B) diencephalon. C) pons. D) medulla oblongata. E) midbrain.

C) pons.

A visceral motor neuron whose cell body is within the CNS is called a(n) ________ neuron. A) postganglionic B) lower motor C) preganglionic D) somatomotor E) upper motor

C) preganglionic

The ________ is the area monitored by a single receptor cell. A) sensation B) perception C) receptive field D) labeled line E) stimulus

C) receptive field

The statement "It controls the diameter of the pupil" is A) not true for either the parasympathetic or sympathetic nervous systems. B) true only for the parasympathetic nervous system. C) true for both the parasympathetic and sympathetic nervous systems. D) true only for the somatic nervous system. E) true only for the sympathetic nervous system.

C) true for both the parasympathetic and sympathetic nervous systems.

The CNS interprets the ________ of stimulus entirely on the basis of the labeled line over which it arrives. A) duration B) intensity C) type D) location E) adaptation

C) type

Define the term general senses. A) General senses are those that are localized in specific places in the body. B) General senses are those that are internal such as stomach and bladder fullness. C) General senses are those that are localized to our head, including vision and hearing. D) General senses are temperature, pain, touch, pressure, vibration, and proprioception and are distributed throughout the body. E) General senses are those with complex receptor structures.

D) General senses are temperature, pain, touch, pressure, vibration, and proprioception and are distributed throughout the body.

Almost 75 percent of all parasympathetic outflow travels along the ________ nerve(s). A) splanchnic B) trigeminal C) glossopharyngeal D) vagus E) facial

D) vagus

What neurotransmitter is released by all parasympathetic neurons? A) norepinephrine B) epinephrine C) dopamine D) acetylcholine E) serotonin

D) acetylcholine

Within each hemisphere, deep to the floor of the lateral ventricle, you will find the A) auditory cortex. B) motor association areas. C) anterior commissures. D) basal nuclei. E) visual cortex.

D) basal nuclei.

A sudden rise of room brightness would cause A) an increase in the size of the pupil. B) conversion of 11-trans to 11-cis retinal. C) contraction of the pupillary dilator muscles. D) contraction of the pupillary constrictor muscles. E) All of the answers are correct.

D) contraction of the pupillary constrictor muscles.

Which structure carries postganglionic fibers for distribution in the body wall and limbs? A) ventral root B) white ramus C) dorsal ramus D) gray ramus E) spinal nerve

D) gray ramus

Which region of the limbic system is particularly important for the storage and retrieval of long-term memories? A) fornix B) amygdaloid body C) cingulate gyrus D) hippocampus E) mammillary body

D) hippocampus

The tract that links the cerebellum with the pons is the A) superior cerebellar peduncle. B) obverse fibers. C) inferior cerebellar peduncle. D) middle cerebellar peduncle. E) longitudinal fibers.

D) middle cerebellar peduncle.

Identify the type of information that travels along the structure labeled "4." A) fine touch to the cerebral cortex B) visceral motor commands to smooth muscle C) pain and crude touch sensations D) motor commands to skeletal muscles E) proprioception to the cerebral cortex

D) motor commands to skeletal muscles

The hair cells of the cochlear duct are located in the A) semicircular canal. B) saccule. C) spiral ganglion. D) organ of Corti. E) utricle.

D) organ of Corti.

The ________ ear collects sounds waves and transmits them to the ________ ear, which contains auditory ossicles. A) middle; inner B) inner; middle C) outer; inner D) outer; middle E) None of the answers is correct.

D) outer; middle

When you spin quickly, you may feel dizzy. Which component of the inner ear generates the sensations that can lead to this feeling? A) utricle B) maculae C) saccule D) semicircular canal E) spiral ganglion

D) semicircular canal

What happens to the pupils when light intensity decreases? A) the pupils constrict to let in less light B) the pupils constrict to let in more light C) the pupils dilate to let in less light D) the pupils dilate to let in more light E) the pupils reflect more light onto the lens

D) the pupils dilate to let in more light

Identify the structure labeled "3." A) cochlea B) auricle C) semicircular canals D) tympanic membrane E) vestibule

D) tympanic membrane

The cerebellum A) receives input from the motor cortex and basal nuclei. B) if damaged, leads to uncoordinated and jerky movements. C) functions to maintain proper posture and equilibrium. D) compares intended movement to actual movement. E) All the answers are correct.

E) All the answers are correct.

Define baroreceptors. Where are baroreceptors located within the body? A) Baroreceptors are chemoreceptors that detect changes in pH. They are located within the medulla oblongata and in the carotid and aortic bodies. B) Baroreceptors are nociceptors that detect pain. They are located throughout the somatic and visceral systems of the body. C) Baroreceptors are chemoreceptors that detect changes in oxygen and carbon dioxide concentrations. They are located within the medulla oblongata and in the carotid and aortic bodies. D) Baroreceptors are thermoreceptors that detect changes in temperature. They are primarily located in the skin and hypothalamus. E) Baroreceptors are stretch receptors that detect changes in pressure. They are located along the digestive tract, within the walls of the urinary bladder, in the carotid and aortic sinuses, and in the lungs.

E) Baroreceptors are stretch receptors that detect changes in pressure. They are located along the digestive tract, within the walls of the urinary bladder, in the carotid and aortic sinuses, and in the lungs.

How would decreased diffusion across the arachnoid granulations affect the volume of cerebrospinal fluid in the ventricles? A) Decreased diffusion across the arachnoid granulations would decrease the volume of CSF in the ventricles because less CSF would re enter the bloodstream. B) Decreased diffusion across the arachnoid granulations would not change the volume of CSF because the amount of CSF reentering the bloodstream can accommodate for the changes. C) Decreased diffusion across the arachnoid granulations would decrease the volume of CSF in the ventricles because more CSF would re enter the bloodstream. D) Decreased diffusion across the arachnoid granulations would increase the volume of CSF in the ventricles because more CSF would re enter the bloodstream. E) Decreased diffusion across the arachnoid granulations would increase the volume of CSF in the ventricles because less CSF would re enter the bloodstream.

E) Decreased diffusion across the arachnoid granulations would increase the volume of CSF in the ventricles because less CSF would re enter the bloodstream.

The cells that cover the outer surfaces of CNS capillaries cells are the A) monocytes. B) lymphocytes. C) leukocytes. D) microglia. E) astrocytes.

E) astrocytes.

The neural layer contains all of the following except A) photoreceptor rods. B) photoreceptor cones. C) ganglion cells. D) supporting cells. E) blood vessels.

E) blood vessels.

Control of the diameter of the respiratory passages depends upon A) somatomotor stimulation only. B) sensory receptors sensitive to changes in lung ventilation. C) sympathetic stimulation only. D) parasympathetic stimulation only. E) both parasympathetic and sympathetic levels of stimulation.

E) both parasympathetic and sympathetic levels of stimulation.

The sense of taste is also known as A) interoception. B) proprioception. C) equilibrium. D) olfaction. E) gustation.

E) gustation.

Alzheimer's disease is characterized by all of the following except that it A) is the most common cause of senile dementia. B) may be associated with damage to the hippocampus. C) is characterized by a progressive loss of memory. D) is associated with the formation of plaques. E) has a clear genetic basis.

E) has a clear genetic basis.

What is the function of the nerve labeled "4"? A) eye movement B) vision C) olfaction D) taste E) hearing and balance

E) hearing and balance

Where in the eye is aqueous humor located? A) in the anterior cavity, between the ciliary body and the ora serrata B) in the anterior cavity, between the cornea and the retina C) in the posterior cavity, between the lens and the retina D) in the posterior cavity, between the cornea and the lens E) in the anterior cavity, between the cornea and the lens

E) in the anterior cavity, between the cornea and the lens

Name the three tiny bones located in the middle ear, from lateral to medial. A) stapes, incus, and malleus B) malleus, stapes, and incus C) stapes, malleus, and incus D) incus, malleus, and stapes E) malleus, incus, and stapes

E) malleus, incus, and stapes

Nicotinic receptors A) respond to norepinephrine. B) are found at neuroeffector junctions of the autonomic nervous system. C) open chemically gated calcium ion channels. D) respond to epinephrine. E) open chemically gated sodium ion channels.

E) open chemically gated sodium ion channels.

The space between the iris and ciliary body and the lens is the A) anterior chamber. B) canal of Schlemm. C) vitreous body. D) pupil. E) posterior chamber.

E) posterior chamber.

What contains a spider web-like network of cells and fibers through which cerebrospinal fluid flows? A) pia mater B) subdural space C) dural sinus D) falx cerebri E) subarachnoid space

E) subarachnoid space

Tickle is to ________ as ache is to ________. A) baroreceptors; chemoreceptors B) stretch; temperature C) pressure; heat D) thermoreceptors; nociceptors E) touch; pain

E) touch; pain

The cranial nerve that has three major branches is the A) vagus. B) facial. C) abducens. D) glossopharyngeal. E) trigeminal.

E) trigeminal.

The statement "Preganglionic axon terminals release acetylcholine" is A) not true for either the parasympathetic or sympathetic nervous systems. B) true only for the sympathetic nervous system. C) true only for the somatic nervous system. D) true only for the parasympathetic nervous system. E) true for both the parasympathetic and sympathetic nervous systems.

E) true for both the parasympathetic and sympathetic nervous systems.

The statement "It sends its preganglionic fibers to terminal or intramural ganglia" is A) true only for the sympathetic nervous system. B) true only for the somatic nervous system. C) not true for either the parasympathetic or sympathetic nervous systems. D) true for both the parasympathetic and sympathetic nervous systems. E) true only for the parasympathetic nervous system.

E) true only for the parasympathetic nervous system.

Sensory pathways can receive information by all of the following except A) a stimulus altering the permeability of a receptor membrane. B) conversion of a stimulus to a change in membrane potential. C) a projection over a labeled line. D) a change in the flow of ions across the sensory membrane. E) voluntary response.

E) voluntary response.