nervous system test
Which one of the following is the correct sequence of events that follows a threshold potential: 1. the membrane becomes depolarized 2. sodium channels open and sodium ions diffuse inward 3. the membrane becomes repolarized 4. potassium channels open and potassium ions diffuse outward while sodium is actively transported out of the cell A) 2, 1, 4, 3 B) 3, 2, 4, 1 C) 2, 1, 3, 4 D) 4, 1, 3, 2 E) 1, 2, 4, 3
2, 1, 4, 3
Taste buds are replaced about every ______. a. 7 to 10 days b. 7 to 10 weeks c. 7 to 10 months d. 7 to 10 years
7 to 10 days
Sally has a brain injury; she knows what she wants to say but canʹt vocalize the words. The part of her brain that deals with the ability to speak is the: A) central sulcus B) Brocaʹs area C) primary motor area D) longitudinal fissure E) gyrus
Brocaʹs area
White matters refers to myelinated fibers in the: A) SNS B) PNS C) ANS D) CNS E) both ANS and SNS
CNS
Which of the following is true of myopia? a. The myopic eye can see far objects clearly. b. The eyeball is too short. c. Light rays focus behind the retina. d. Concave lenses help correct this condition.
Concave lenses help correct this condition.
Otoliths activate which receptors? a. Spiral organs b. Maculae c. Cristae ampullares d. Mitral cells
Cristae ampullares
Vestibular nystagmus occurs when which receptors are stimulated? a. Spiral organs b. Maculae c. Cristae ampullares d. Cones
Cristae ampullares
Which of the following sensory receptors is a touch receptor: A) Golgi tendon organ B) Pacinian corpuscle C) Meissnerʹs corpuscle D) muscle spindles E) naked nerve endings
Meissnerʹs corpuscle
The pharyngotympanic tube connects the throat with which part of the ear? a. External ear b. Middle ear c. Internal ear d. Cochlear duct
Middle ear
Which of these cells are not a type of neuroglia found in the CNS: A) Schwann cells B) oligodendrocytes C) ependymal cells D) astrocytes E) microglia
Schwann cells
Which of the following is not a taste bud classification? a. Sweet b. Sour c. Spicy d. Umami
Spicy
Vibrations of the cochlear duct cause the cilia of the hair cells to bend against which membrane? a. Tympanic b. Vestibular c. Tectorial d. Basilar
Tectorial
Which of the following statements is true of vision? a. The cornea helps converge light rays onto the retina. b. The lens of the eye will become more convex when focusing on far objects. c. The light entering the eye is focused onto the optic disc. d. The iris helps to focus the lens.
The cornea helps converge light rays onto the retina.
Which of the following occurs when looking at near objects? a. The lens flattens b. The pupils constrict c. The eyeballs diverge d. The ciliary muscle relaxes
The pupils constrict
Which one of the following best describes the waxy-appearing material called myelin: A) a mass of white lipid material that surrounds the dendrites of a neuron B) an outer membrane on a neuroglial cell C) a mass of white lipid material that insulates the axon of a neuron D) a lipid-protein (lipoprotein) cell membrane on the outside of axons E) a mass of white lipid material that surrounds the cell body of a neuron
a mass of white lipid material that insulates the axon of a neuron
The substance that is released at axonal endings to propagate a nervous impulse is called: A) an ion B) an action potential C) the sodium-potassium pump D) a neurotransmitter E) nerve glue
a neurotransmitter
The subarachnoid space lies directly between the: A) arachnoid mater and cerebellum B) arachnoid mater and cerebrum C) skull and arachnoid mater D) arachnoid mater and dura mater E) arachnoid mater and pia mater
arachnoid mater and pia mater
A neuron with a cell body located in the CNS whose primary function is connecting other neurons is called a(n): A) efferent neuron B) glial cell C) afferent neuron D) satellite cell E) association neuron
association neuron
The sympathetic and parasympathetic nervous systems are subdivisions of the: A) autonomic nervous system B) voluntary nervous system C) somatic nervous system D) central nervous system E) peripheral nervous system
autonomic nervous system
The Schwann cell forms a myelin sheath around the: A) nucleus B) cell body C) axon D) nodes of Ranvier E) dendrites
axon
The three sets of color receptors within the retina are sensitive to wavelengths of visible light that are: A) blue, green, and red B) green, yellow, and purple C) orange, green, and purple D) red, blue, and yellow E) red, green, and yellow
blue, green, and red
Which of the nerve plexuses serves the shoulder and arm: A) sacral B) cervical C) phrenic D) lumbar E) brachial
brachial
The term central nervous system refers to the: A) spinal cord and spinal nerves B) autonomic and peripheral nervous systems C) brain, spinal cord, and cranial nerves D) brain and cranial nerves E) brain and spinal cord
brain and spinal cord
The midbrain, pons, and medulla oblongata are housed in the: A) diencephalon B) brain stem C) pineal gland D) hypothalamus E) cerebellum
brain stem
Loss of muscle coordination results from damage to the: A) hypothalamus B) cerebrum C) midbrain D) cerebellum E) thalamus
cerebellum
Which of the following is a traumatic brain injury: A) aphasia B) cerebral edema C) cerebrovascular accident (CVA) D) Parkinsonʹs disease E) Alzheimerʹs disease
cerebral edema
Which one of the following is the correct sequence of nerves that exit the spinal cord, going from superior to inferior: A) cervical spinal nerves, lumbar spinal nerves, thoracic spinal nerves, sacral spinal nerves B) cervical spinal nerves, thoracic spinal nerves, sacral spinal nerves, lumbar spinal nerves C) thoracic spinal nerves, cervical spinal nerves, sacral spinal nerves, lumbar spinal nerves D) thoracic spinal nerves, cervical spinal nerves, lumbar spinal nerves, sacral spinal nerves E) cervical spinal nerves, thoracic spinal nerves, lumbar spinal nerves, sacral spinal nerves
cervical spinal nerves, thoracic spinal nerves, lumbar spinal nerves, sacral spinal nerves
The receptors for taste and smell are classified as ________. a. mechanoreceptors b. chemoceptors c. nociceptors d. proprioceptors
chemoceptors
The middle coat of the eyeball that contains pigment which prevents light from scattering in the eyeball is the: A) sclera B) pupil C) retina D) choroid E) cornea
choroid
Blood vessels of the eye are found in the ________. a. cornea b. choroid coat c. retina d. lens
choroid coat
All are extrinsic muscles of the eye except: a. lateral rectus. b. medial rectus. c. superior oblique. d. ciliary muscle.
ciliary muscle
The spiral organs of Corti are found in the _______. a. vestibule b. semicircular canals c. utricle d. cochlea
cochlea
The sciatic nerve is the largest nerve in the body resulting from a combination of which two nerves: A) pudendal and femoral nerves B) pudendal and common peroneal nerves C) pudendal and tibial nerves D) common fibular and tibial nerves E) femoral and tibial nerves
common fibular and tibial nerves
The highly contagious bacterial infection known as ʺpinkeyeʺ is caused by bacterial or viral irritation of the: A) cornea B) conjunctiva C) retina D) choroid E) sclera
conjunctiva
The maculae of the ear ________. a. respond to dynamic equilibrium b. contain hair cells c. are located in the semicircular canals d. are encased in a gelatinous mass called a cupula
contain hair cells
The fibrous layer of the eye contains the _______. a. cornea b. choroid coat c. retina d. lens
cornea
The transparent central anterior portion of the sclera through which light enters the eye is called the: A) cornea B) choroid C) pupil D) iris E) retina
cornea
Which one of the following correctly lists the order of the parts through which light passes as it enters the eye: A) vitreous humor, lens, aqueous humor, cornea B) lens, aqueous humor, cornea, vitreous humor C) cornea, aqueous humor, lens, vitreous humor D) cornea, lens, aqueous humor, vitreous humor E) aqueous humor, cornea, lens, vitreous humor
cornea, aqueous humor, lens, vitreous humor
Cerebrospinal fluid circulates through all of the following except: A) corpus callosum B) lateral ventricles C) fourth ventricle D) cerebral aqueduct E) subarachnoid space
corpus callosum
Which cranial nerve is responsible for moving the eye laterally: A) cranial nerve VIII (vestibulocochlear) B) cranial nerve III (oculomotor) C) cranial nerve II (optic) D) cranial nerve IV (trochlear) E) cranial nerve VI (abducens)
cranial nerve IV (trochlear)
The nerve that contains sensory fibers that are involved in hearing is: A) cranial nerve VIII B) cranial nerve II C) cranial nerve IX D) cranial nerve III E) cranial nerve V
cranial nerve VIII
Sensorineural deafness results from all of the following except: a. loss of hair cells. b. damage to the cochlear nerve. c. damage to the ossicles. d. damage to the auditory cortex.
damage to the ossicles.
Which of the following effects is characteristic of the parasympathetic nervous system: A) increases metabolic rate B) stimulates sweat glands to produce perspiration C) decreases heart rate D) decreases urine output E) decreases activity of the digestive system
decreases heart rate
Inflammation of the conjunctiva involves which of the following: A) portion of the eye that contains the optic nerve B) extrinsic eye muscles C) circular band surrounding the pupil D) delicate membrane lining the eyelids and covering the front of the eyeball E) glands that produce tears
delicate membrane lining the eyelids and covering the front of the eyeball
The neuron processes that normally receive incoming stimuli are called: A) Schwann cells B) dendrites C) neurolemmas D) satellite cells E) axons
dendrites
Which one of the following statements about aging is most accurate: A) the brain reaches its maximum weight around the seventh decade of life B) synaptic connections are too fixed to permit a great deal of learning after the age of 35 C) despite some neuronal loss, an unlimited number of neural pathways are available and ready to be developed; therefore, additional learning can occur throughout life D) increased efficiency of the sympathetic nervous system enhances the ability to learn E) learning throughout the adult and aging years is supported primarily by glial proliferation
despite some neuronal loss, an unlimited number of neural pathways are available and ready to be developed; therefore, additional learning can occur throughout life
The sense of smell can ____________. a. elicit an emotional response b. exhibit adaptation c. trigger a fight-or-flight response d. do all of the above
do all of the above
Which one of the following represents the correct sequence from outermost to innermost layers of the meninges: A) dura mater, arachnoid mater, pia mater B) pia mater, dura mater, arachnoid mater C) arachnoid mater, dura mater, pia mater D) dura mater, pia mater, arachnoid mater E) pia mater, arachnoid mater, dura mater
dura mater, arachnoid mater, pia mater
Muscles and glands are: A) effectors B) part of the central nervous system C) part of the peripheral nervous system D) receptors E) myelinated
effectors
Which one of the following is the correct sequence in connective tissue sheaths, going from outermost to innermost layer: A) perineurium, endoneurium, epineurium B) epineurium, perineurium, endoneurium C) perineurium, epineurium, endoneurium D) epineurium, endoneurium, perineurium E) endoneurium, epineurium, perineurium
epineurium, perineurium, endoneurium
Which one of the following nerves serves the anterior tongue: A) cochlear B) vestibular C) vagus D) facial E) glossopharyngeal
facial
Bipolar neurons are commonly: A) motor neurons B) found in the eye and nose C) more abundant in adults than in children D) called neuroglia E) found in ganglia
found in the eye and nose
The greatest visual acuity is found at the: A) lens B) fovea centralis C) ciliary body D) optic disc E) iris
fovea centralis
Lobe that contains the primary motor area that enables voluntary control of skeletal muscle movements: A) frontal lobe B) occipital lobe C) parietal lobe D) diencephalon E) temporal lobe
frontal lobe
Collections of nerve cell bodies inside the CNS are called: A) nuclei B) ganglia C) nerves D) tracts E) tracts or ganglia
ganglia
The elevated ridges of tissue on the surface of the cerebral hemispheres are known as __________ while the shallow grooves are termed __________. A) sulci; gyri B) tracts; ganglia C) ganglia; gyri D) gyri; sulci E) receptors; effectors
gyri; sulci
Hearing receptors within the spiral organ of Corti are called: A) cone cells B) Corti cells C) hair cells D) rod cells E) ceruminous cells
hair cells
In contrast to the somatic nervous system, the autonomic nervous system: A) stimulates its effector cells B) has centers in the brain and spinal cord C) has both afferent and efferent fibers D) has two motor neurons E) has two afferent neurons
has two motor neurons
Control of temperature, endocrine activity, metabolism, and thirst are functions associated with the: A) thalamus B) cerebellum C) hypothalamus D) medulla oblongata E) cerebrum
hypothalamus
The pituitary gland is most closely associated with the: A) hypothalamus B) medulla oblongata C) pineal gland D) midbrain E) thalamus
hypothalamus
Sympathetic nervous system stimulation causes: A) increased blood glucose, decreased GI peristalsis, and increased heart rate and blood pressure B) decreased blood glucose, increased GI peristalsis, and decreased heart rate and blood pressure C) increased blood glucose, increased GI peristalsis, and decreased heart rate and blood pressure D) decreased blood glucose, decreased GI peristalsis, and decreased heart rate and blood pressure E) decreased blood glucose, increased GI peristalsis, and increased heart rate and blood pressure
increased blood glucose, decreased GI peristalsis, and increased heart rate and blood pressure
The auditory ossicle called the ʺanvilʺ is also called the: A) incus B) stapes C) malleus D) bony labyrinth E) cochlea
incus
Equilibrium receptors are located in the: A) tympanic membrane B) inner ear C) external ear D) middle ear E) ossicles
inner ear
The pigmented portion of the eye that has a rounded opening through which light passes is the: A) cornea B) sclera C) iris D) lens E) retina
iris
The ability to respond to a stimulus is termed: A) polarized B) depolarized C) irritability D) all-or-none response E) conductivity
irritability
The cerebrospinal fluid: A) enters the four ventricles after filling and circulating through the subarachnoid space B) is secreted by the arachnoid villi C) is identical in composition to whole blood D) is secreted mostly by the ependymal cells lining the brain ventricles E) is continually formed mostly by the choroid plexuses
is continually formed mostly by the choroid plexuses
An action potential: A) involves the outflux of negative ions to depolarize the membrane B) involves the influx of negative ions to depolarize the membrane C) is initiated by potassium ion movements D) involves the outflux of positive ions to depolarize the membrane E) is essential for nerve impulse propagation
is essential for nerve impulse propagation
Which one of the following describes saltatory conduction: A) is faster than conduction on an unmyelinated fiber B) occurs only if nodes of Ranvier are lacking C) occurs only if the myelin sheath is continuous D) is slower than conduction on an unmyelinated fiber E) occurs only in the absence of axon hillocks
is faster than conduction on an unmyelinated fiber
Which one of the following is NOT true of color blindness: A) lack of red or green receptors is the most common type B) it is sex-linked, inherited homeostatic imbalance C) it is caused by a defect in genes on the X (female) sex chromosome D) it occurs most often in women E) it results from lack of cones
it occurs most often in women
The gland that produces tears in the eye is called the: A) ceruminous gland B) ciliary gland C) tarsal gland D) lacrimal gland E) sebaceous gland
lacrimal gland
Tears drain directly from the _______ into the nasolacrimal duct. a. lacrimal gland b. lacrimal punta c. lacrimal sac d. lacrimal canaliculi
lacrimal sac
Stimulation of sour receptors occurs in response to: A) sugar B) salt C) beef steak D) saccharine E) lemons
lemons
What structure of the eye focuses light on the retina: A) optic chiasma B) lens C) choroid D) sclera E) iris
lens
Presbyopia is the inability of the ________. a. lens to accommodate b. pupils to constrict c. cornea to refract light d. cones to depolarize
lens to accommodate
Which of the nerves plexuses originates from ventral rami - : A) brachial B) lumbar C) sacral D) spinal E) cervical
lumbar
The pathway of vibrations through the ossicles from the tympanic membrane, or eardrum, to the oval window is: A) incus, malleus, stapes B) stapes, incus, malleus C) malleus, stapes, incus D) malleus, incus, stapes E) stapes, malleus, incus
malleus, incus, stapes
Receptors stimulated by the physical forces that cause movement of fluid or vibration within the body are: A) proprioceptors B) thermoreceptors C) chemoreceptors D) gustatory receptors E) mechanoreceptors
mechanoreceptors
1) The vital centers for the control of visceral activities such as heart rate, breathing, blood pressure, swallowing, and vomiting are located in the: A) hypothalamus B) pons C) cerebrum D) midbrain E) medulla oblongata
medulla oblongata
The blood-brain barrier is effective against the passage of: A) nutrients such as glucose B) metabolic waste such as urea C) water D) anesthetics E) alcohol
metabolic waste such as urea
The three major parts of the brain stem are the: A) basal nuclei, pineal body, and choroid plexus B) dura mater, arachnoid mater, and pia mater C) midbrain, pons, and medulla oblongata D) thalamus, epithalamus, and hypothalamus E) cerebrum, cerebellum, and diencephalon
midbrain, pons, and medulla oblongata
An ear infection following an illness such as a cold has passed from the throat through the auditory tube to the: A) middle ear B) semicircular canals C) inner ear D) eardrum E) outer ear
middle ear
Impulse conduction is fastest in neurons that are: A) sensory B) unmyelinated C) cerebral D) motor E) myelinated
myelinated
The inability to see distant objects is termed ʺnearsightedʺ or: A) emmetropia B) presbyopia C) myopia D) hyperopia E) astigmatism
myopia
The area where the optic nerve leaves the eye is called the ________. a. fovea centralis b. macula lutea c. optic disc d. fundus
optic disc
Sound is transmitted from the tympanic membrane to the internal ear by the __________. a. cochlea b. ossicles c. vestibular membrane d. round window
ossicle
Which one of the following is NOT part of the inner ear? A) semicircular canals B) ossicles C) vestibule D) cochlea E) membranous labyrinth
ossicles
The stapes connects with the internal ear via the ___________. a. basilar membrane b. tympanic membrane c. oval window d. round window
oval window
The effects of the sympathetic nervous system are essentially opposite of the: A) motor division B) parasympathetic nervous system C) sensory division D) central nervous system E) autonomic nervous system
parasympathetic nervous system
The bony labyrinth contains: a. the spiral organs of Corti. b. endolymph. c. perilymph. d. both a and b.
perilymph.
Eyes suddenly exposed to bright light experience: A) photopupillary reflex B) convergence C) accommodation pupillary reflex D) hemianopia E) eyestrain
photopupillary reflex
Immediately after an action potential is propagated, which one of the following ions rapidly diffuses out of the cell into the tissue fluid: A) potassium B) calcium C) sodium D) chloride E) magnesium
potassium
The decreased lens elasticity associated with aging that makes it difficult to focus on near objects is known as: A) myopia B) presbyopia C) strabismus D) hyperopia E) hemianopia
presbyopia
Which one of the following is NOT a primary taste sensation: A) salty B) sweet C) pungent D) sour E) bitter
pungent
Damage to this nerve results in ʺwristdrop,ʺ the inability to extend the hand at the wrist: A) obturator B) radial C) axillary D) phrenic E) femoral
radial
Which of the following is the correct sequence in a typical reflex arc: A) receptor, afferent neuron, efferent neuron, integration center, effector B) effector, efferent neuron, integration center, afferent neuron, receptor C) receptor, afferent neuron, integration center, efferent neuron, effector D) effector, afferent neuron, integration center, efferent neuron, receptor E) receptor, efferent neuron, integration center, afferent neuron, effector
receptor, afferent neuron, integration center, efferent neuron, effector
The diffusion of potassium ions out of a neuron causes it to experience: A) repolarization B) an action potential C) a nerve impulse D) a graded potential E) depolarization
repolarization
The area of the brain stem that plays a role in consciousness and the awake/sleep cycles is the: A) cerebellum B) thalamus C) reticular activating system (RAS) D) pineal gland E) limbic system
reticular activating system (RAS)
Which layer of the eye contains rods and cones: A) iris B) retina C) sclera D) choroid E) optic nerve
retina
The scala tympani extends from the apex of the cochlea to the _________. a. scala media b. scala vestibuli c. basilar membrane d. round window
round window
Spinal nerves exiting the cord from the level of L4 to S4 form the: A) lumbar plexus B) sacral plexus C) femoral plexus D) obturator plexus E) thoracic plexus
sacral plexus
The fibrous outermost tunic seen anteriorily as the ʺwhite of the eyeʺ is the: A) retina B) sclera C) choroid D) cornea E) fovea centralis
sclera
The aqueous humor of the eye is reabsorbed into venous blood through the: A) inferior larimal canal B) pupil C) nasolacrimal duct D) scleral venous sinus (canal of Schlemm) E) ciliary body
scleral venous sinus (canal of Schlemm)
Tarsal glands associated with the edges of the eyelids are considered modified: A) sweat glands B) sebaceous glands C) ceruminous glands D) apocrine glands E) lacrimal glands
sebaceous glands
Dynamic equilibrium receptors are found in the: A) oval window B) cochlea C) semicircular canals D) malleus E) vestibule
semicircular canals
Afferent nerves are called __________, and motor nerves are called __________. A) peripheral nerves; cranial nerves B) sensory nerves; efferent nerves C) cranial nerves; peripheral nerves D) motor nerves; sensory nerves E) mixed nerves; motor nerves
sensory nerves; efferent nerves
Which one of these effectors is NOT directly controlled by the autonomic nervous system: A) smooth muscle B) cardiac muscle C) most glands D) skeletal muscle E) abdominal organs
skeletal muscle
Gustatory hairs are to taste as olfactory hairs are to: A) both hearing and dynamic equilibrium B) dynamic equilibrium C) sight D) hearing E) smell
smell
The function of the olfactory nerve concerns: A) smell B) chewing C) vision D) eye movement E) hearing
smell
An action potential is caused by an influx of these ions into the cell: A) both potassium and sodium B) potassium C) sodium D) magnesium E) calcium
sodium
Hair cells that function as hearing receptors are located within the: A) auditory tube B) oval window C) auricle D) spiral organ of Corti E) ossicles
spiral organ of Corti
Sensorineural deafness occurs when there is damage or degeneration of receptor cells of the: A) spiral organ of Corti or cochlear nerve B) semicircular canals C) spiral organ of Corti D) round window E) ossicles
spiral organ of Corti or cochlear nerve
The congenital condition of ʺcrossed eyesʺ is also known as: A) hemianopia B) hyperopia C) presbyopia D) strabismus E) myopia
strabismus
The gray matter of the spinal cord: A) surrounds the white matter of the spinal cord B) surrounds the central canal C) contains myelinated fiber tracts D) always carries sensory information to the brain E) is made up of the dorsal, lateral, and ventral columns
surrounds the central canal
Preparing the body for the ʺfight-or-flightʺ response during threatening situations is the role of the: A) sympathetic nervous system B) somatic nervous system C) cerebrum D) afferent nervous system E) parasympathetic nervous system
sympathetic nervous system
The gap between two communicating neurons is termed: A) node of Ranvier B) synaptic cleft C) effector D) cell body E) Schwann cell
synaptic cleft
The oily secretions that lubricate the eye are produced by the: A) ceruminous glands B) apocrine glands C) ciliary glands D) lacrimal glands E) tarsal glands
tarsal glands
The olfactory area is found within the: A) occipital lobe B) parietal lobe C) frontal lobe D) temporal lobe E) pyramidal tract
temporal lobe
Cell bodies of the sensory neurons of the spinal nerves are located in: A) the dorsal root ganglia of the spinal cord B) the thalamus C) the hypothalamus D) the ventral root ganglia of the spinal cord E) sympathetic ganglia
the dorsal root ganglia of the spinal cord
The peripheral nervous system consists of: A) the spinal and cranial nerves B) the brain and spinal cord C) spinal nerves only D) cranial nerves only E) the brain only
the spinal and cranial nerves
All of the following statements are true of rods except: a. they are used in dim light. b. they contain a pigment called rhodopsin. c. they are not found in the fovea centralis. d. they are 100 times less sensitive than cones.
they are 100 times less sensitive than cones.
Sympathetic division fibers leave the spinal cord in the: A) thoracolumbar region, and the postganglionic fibers secrete acetylcholine B) craniosacral regions, and the postganglionic fibers secrete norepinephrine C) craniosacral region, and the preganglionic fibers secrete norepinephrine D) craniosacral region, and the postganglionic fibers secrete acetylcholine E) thoracolumbar region, and the postganglionic fibers secrete norepinephrine
thoracolumbar region, and the postganglionic fibers secrete norepinephrine
Sound waves entering the external auditory canal hit the eardrum, also known as the: A) oval window B) ossicles C) tympanic membrane D) pinna E) auricle
tympanic membrane
Which one of the following cranial nerves is NOT involved in either taste or smell: A) vestibular (VIII) B) glossopharyngeal (IX) C) olfactory nerve (I) D) facial nerve (VII) E) vagus (X)
vestibular (VIII)
The portion of the bony labyrinth responsible for static equilibrium is the: A) oval window B) ossicles C) semicircular canals D) vestibule E) cochlea
vestibule
The only special sense that is NOT fully functional at birth is: A) taste B) vision C) hearing D) smell E) touch
vision
The gel-like substance that reinforces the eyeball and prevents it from collapsing inward is the: A) choroid coat B) canal of Schlemm C) aqueous humor D) vitreous humor E) ciliary body
vitreous humor
The sense of taste is carried back to the brain by all of the following cranial nerves except: a. V. b. VII. c. IX. d. X.
x