A&P Test 5

What connective tissue sheath wraps the axon of a neuron? A) epineurium B) the perineurium C) fascicle D) endoneurium

endoneurium

Bundles of axons within a nerve are known as: A) fascicles B) the perineurium C) the endoneurium D) dendrites

fascicles

Identify the cranial nerves NOT involved in carrying taste information from the tongue into the CNS. A) glossopharyngeal nerves (CN IX) B) facial nerves (CN VII) C) vagus nerves (CN X) D) hypoglossal nerves (CN XII)

hypoglossal nerves (CN XII)

The activation of olfactory receptors requires that the odorant become immersed in: A) blood. B) saliva. C) cerumen. D) mucus.

mucus

Potentially damaging stimuli that result in pain are selectively detected by: A) nociceptors. B) chemoreceptors. C) proprioceptors. D) photoreceptors.

nociceptors

Where does the motor potion of the facial nerve (VIII) originate? A) cerebral cortex B) midbrain C) nuclei in the pons and medulla D) tongue

nuclei in the pons and medulla

Which cranial nerve detects smell? A) olfactory nerve (I) B) optic nerve (II) C) oculomotor (III) D) trochlear nerve (IV)

olfactory nerve (I)

Which of the following does NOT belong to the brachial plexus? A) phrenic nerve B) musculocutaneous nerve C) median nerve D) ulnar nerve

phrenic nerve

Which mechanoreceptor detects deep pressure? A) Merkel cell fiber B) tactile corpuscle C) lamellated corpuscle D) Ruffini ending

ruffini ending

To what part of the brain are both general and most special senses carried? A) pons B) thalamus C) medulla oblongata D) hypothalamus

thalamus

Your wrap your hands around a warm cup of hot chocolate. This sensation is detected by a: A) thermoreceptor. B) hair follicle receptor. C) photoreceptor. D) chemoreceptor.

thermoreceptor

The cranial nerves that have neural connections with the tongue include all of the following EXCEPT: A) trigeminal nerve (V) B) trochlear nerve (IV) C) facial nerve (VII) D) glossopharyngeal nerve (IX)

trochlear nerve (IV)

Striking the "funny" bone is actually stimulation (or injury) to the: A) axillary nerve. B) radial nerve. C) median nerve. D) ulnar nerve.

ulnar nerve

The most taste buds are present in: A) filiform papillae. B) vallate (circumvallate) papillae. C) fungiform papillae. D) foliate papillae.

vallate (circumvallate) papillae

What cranial nerve VIII? A) glossopharyngeal nerve B) vestibulocochlear nerve C) facial nerve D) trigeminal nerve

vestibulocochlear nerve

Which cranial nerve is NOT involved in eye movement? A) trochlear nerve (IV) B) vestibulocochlear nerve (VIII) C) Oculomotor nerve (III) D) Abducens nerve (VI)

vestibulocochlear nerve (VIII)

What is the outermost connective tissue covering of a nerve? A) Perineurium B) Epineurium C) Endoneurium D) Epimysium

Epineurium

How is the sensation of taste affected by a dry mouth? A) Most foods will taste bitter when the mouth is dry. B) Foods have a less intense taste when the mouth is dry. C) The moisture level of the mouth has no influence on taste sensation. D) Foods have a more intense taste when the mouth is dry

Foods have a less intense taste when the mouth is dry.

Which cranial nerve is generally thought of as mixed nerve? A) Accessory nerve (XI) B) Glossopharyngeal nerve (IX) C) Hypoglossal nerve (XIII) D) Vestibulocochlear nerve (VIII)

Glossopharyngeal nerve (IX)

Sensory transduction occurs in: A) PNS sensory neurons. B) upper motor neurons. C) lower motor neurons. D) CNS interneurons.

PNS sensory neurons

Which division detects stimuli of the general senses and special senses? A) Somatic sensory division B) Visceral sensory division C) Somatic sensory division D) Visceral motor division (autonomic nervous system)

Somatic sensory division

The vagus nerve is represented by roman numeral: A) X B) I C) V D) XII

X

The olfactory nerves (CN I) are formed by: A) olfactory tracts. B) axons of the olfactory neurons. C) olfactory bulbs. D) supporting cells.

axons of the olfactory neurons

Mixed nerves house: A) somatic neurons only B) sensory neurons only C) motor neurons only D) both sensory and motor neurons

both sensory and motor neurons

Which plexus provides motor and sensory innervation to the upper limb? A) cranial plexus B) lumbar plexus C) brachial plexus D) sacral plexus

brachial plexus

Which of the following parts of the eye refract light to focus it on the retina? A) sclera and choroid B) ciliary body and suspensory ligaments C) cornea and lens D) pupil and iris

cornea and lens

What nerves carry information about the special senses to the CNS? A) cervical nerves only B) both cranial and spinal nerves C) cranial nerves only D) spinal nerves only

cranial nerves only

Olfactory receptors depolarize in response to an odorant, turning a stimulus into an electrical signal. This conversion is known as: A) repolarization. B) adaptation. C) sensory transduction. D) propagation.

Sensory transduction

What secretes the aqueous humor? A) ciliary body B) iris C) vitreous humor D) lens

ciliary body

What region of the retina contains a high density of photoreceptor cells and allows for extremely detailed vision? A) ciliary body B) fovea centralis C) ora serrata D) optic disc

fovea centralis

Ms. Parker has damage to the sensory root of the facial nerve (VII). Which of the following symptoms matches this information? A) inability to swallow B) inability to elevate the mandible C) inability to taste D) inability to smell

inability to taste

What do most of the anterior rami of the thoracic spinal nerves serve? A) brachial nerves B) phrenic nerves C) intercostal nerves D) median nerves

intercostal nerves

The stretch of a full urinary bladder is detected by a(n): A) exteroceptor. B) thermoreceptor. C) interoceptor. D) photoreceptor.

interoceptor

What part of the eye controls the amount of light entering through the pupil? A) iris B) lens C) cornea D) sclera

iris

Which of the following carries sensory information only? A) anterior root B) posterior ramus C) anterior ramus D) posterior (dorsal) root

posterior (dorsal) root

What taste sensation results when sodium ions enter gustatory cells through sodium ion channel receptors, and the cell depolarizes? A) salty B) bitter C) umami D) sour

salty

Where are the general senses located? A) tongue B) eyes C) nose D) skin

skin

Damage to the basal cells in the olfactory epithelium results in a loss of: A) hearing. B) taste. C) smell. D) vision.

smell

Olfaction is the sense of: A) smell. B) hearing. C) taste. D) balance.

smell

The anterior root and posterior root fuse to form a(n): A) posterior horn. B) anterior horn. C) spinal nerve. D) posterior (dorsal) root ganglion.

spinal nerve