question

PNS functionally divided into sensory and motor divisions 1) general visceral motor part 2) autonomic nervous system (ANS) - parasympathetic - sympathetic sensory receptors, nerves, ganglia, motor endings

answer

peripheral nervous system

question

the spinal root of which cranial nerve pair innervates the sternocleidomastoid and trapezius muscles a) IV b) V c) VIII d) XI e) XII

answer

XI

question

Which cranial nerve, along with cranial nerve pair II, relays specific somatic sensory impulses a) I b) II c) IV d) V e) VIII

answer

VIII

question

of the cranial nerve pairs listed below, which nerve, along with XI and XII relay only somatic motor impulses a) I b) II c) IV d) V e) VIII

answer

IV

question

pick up stimuli from inside or outside the body two main categories: 1) free nerve endings - monitor general sensory info 2) complete receptor cells - special sensory info location categories: 1) exteroceptors 2) interoceptors 3) proprioceptors stimulus detected categories: 1) mechanoreceptors 2) thermoreceptors 3) chemoreceptors 4) photoreceptors 5) nociceptors structure classification categories: 1) general sensory receptors

answer

sensory receptors

question

structure classification of sensory receptors nerve endings monitor touch, pressure, vibration, stretch, pain, temperature, proprioception divided into two groups: 1) free nerve endings 2) encapsulated nerve endings

answer

general sensory receptors

question

location of sensory receptors sensitive to stimuli arising from outside the body include receptors for touch, pressure, pain, and temperature

answer

exteroceptors

question

location of sensory receptors receive stimuli from internal viscera location: digestive tube, bladder, and lungs function: change chemical concentration, taste, stretching of tissues, temperature

answer

interoceptors

question

location of sensory receptors located in skeletal muscles, tendons, joints, and ligaments monitor degree of stretch send inputs on body movement to the CNS three types: 1) muscle spindles 2) intrafusal muscle fibers 3) anulospiral endings

answer

proprioceptors

question

type of proprioceptor measure the changing length of a muscle embedded in the perimysium between muscle fascicles

answer

muscle spindles

question

type of proprioceptor modified skeletal muscle fibers located within muscle spindles

answer

intrafusal muscle fibers

question

type of proprioceptor located around middle of intrafusal fibers are stimulated by rate and degree of stretch

answer

anulospiral endings

question

bundles of peripheral axons

answer

nerves

question

clusters of peripheral neuronal cell bodies

answer

ganglia

question

axon terminals of motor neurons innervate effectos

answer

motor endings

question

stimulus detected from sensory receptor respond to mechanical forces - touch, pressure, stretch, vibration, and itch - baroreceptors - monitor blood pressure four types 1) Meissner's corpuscles 2) Pacinian corpuscles 3) bulbous corpuscles 4) proprioceptors

answer

mechanoreceptors

question

stimulus detected from sensory receptor respond to temperature change

answer

thermoreceptors

question

stimulus detected from sensory receptor respond to chemicals in solution

answer

chemoreceptors

question

stimulus detected from sensory receptor responds to light located in the eye

answer

photoreceptors

question

stimulus detected from sensory receptor respond to harmful stimuli that result in pain

answer

nociceptors

question

general sensory receptor abundant in epithelia and underlying CT respond to pain and temperature two types 1) epithelial tactile complexes - receptor for light touch 2) hair follicle receptors - wrap around hair follicles

answer

free nerve endings

question

general sensory receptor consist of one or more end fibers of sensory neurons enclosed CT contains the mechanoreceptors

answer

encapsulated nerve endings

question

encapsulated nerve endings tactile corpuscle spiraling nerve ending surrounded by schwann cells OCCUR IN DERMAL PAPILLAE light touch receptors

answer

meissners corpuscles

question

encapsulated nerve endings single nerve ending surrounded by layers of flattened schwann cells occur in hypodermis sensitive to deep pressure - rapidly adapting receptors

answer

lamellar corpuscles

question

encapsulated nerve endings located in the dermis and respond to pressue monitor continuous pressure on the skin - adapt slowly

answer

bulbous corpuscles

question

31 pairs - contain thousands of nerve fibers 8 Cervical 12 Thoracic 5 Lumbar 5 Sacral 1 Coccygeal connect to the spinal cord by the dorsal root and ventral root branch into dorsal ramus and ventral ramus - contain sensory and motor fibers

answer

spinal nerves

question

contains sensory fibers

answer

dorsal root

question

contains motor fibers arising from anterior gray column

answer

ventral root

question

innervates back muscles follow a neat, segmented pattern - innervate a horizontal strip of muscle and skin

answer

dorsal rami

question

innervates thoracic region arranged in a simple pattern form nerve plexuses intercostal nerves - supply skin and abdomin

answer

ventral rami

question

located deep to the sternocleidomastoid muscle formed by ventral rami of first four cervical nerves PHRENIC NERVE - INNERVATES DIAPHRAGM

answer

cervical plexus

question

lies in the neck and axilla formed by ventral rami of C5-C8 upper limbs

answer

brachial plexus

question

main branch of the lateral cord innervates the biceps brachii and brachialis *LOCATION -

answer

musculocutaneous

question

originates from both lateral and medial cords innervates anterior forearm muscles and lateral palm

answer

median

question

branches from the medial cord innervates intrinsic hand muscles and skin of the medial hand

answer

ulnar

question

femoral nerve - largest nerve branching smaller branches innervate the posterior abdominal wall and psoas muscle obturator nerve - innervates adductor muscles

answer

lumbar plexus

question

arises from spinal nerves L4-S4 caudal to the lumbar plexus sciatic nerve - largest nerve of the sacral plexus two nerves in one sheath 1) tibial nerve 2) common fibular nerve

answer

sacral plexus

question

two nerves in one sheath 1) tibial nerve - posterior lower limb 2) fibular nerve - anterolateral leg

answer

sciatic nerve

question

an area of skin innervated by spinal nerve skin is supplied by nerves of the brachial plexus

answer

dermatome

question

viral infection stems from childhood chicken pox stress

answer

shingles

question

relates to sensory innervation of cerebral arteries - arteries dilate and compress and irritate sensory nerve endings TRIGEMINAL CRANIAL NERVE

answer

migraine headache

question

pathological condition of peripheral nerves symptoms: pain, buring, loss of sensation, paresthesia muscle weakness, paralysis causes: trauma, HIV, diabetes

answer

peripheral neuropathy

question

what is the I cranial nerve

answer

olfactory

question

what is the II cranial nerve

answer

optic

question

what is the III cranial nerve

answer

oculomotor

question

what is the IV cranial nerve

answer

trochlear

question

what is the V cranial nerve GIVES HEADACHES

answer

trigeminal

question

what is the VI cranial nerve

answer

abducens

question

what is the VII cranial nerve

answer

facial

question

what is the VIII cranial nerve

answer

vestibulocochlear

question

what is the IX cranial nerve

answer

glossopharyngeal

question

what is the X cranial nerve

answer

vagus

question

what is the XI cranial nerve

answer

accessory

question

what is the XII cranial nerve

answer

hypoglossal

question

Does the Olfactory nerve have sensory or motor function? what is the function?

answer

visceral sensory smell

question

does the Optic nerve have sensory or motor function? what is the function?

answer

somatic sensory vision

question

does the Oculomotor nerve have sensory or motor function?

answer

somatic motor visceral motor

question

what is the somatic motor function in the Oculomotor nerve

answer

movement of eyes

question

what is the visceral motor function in the Oculomotor nerve

answer

controls lens constricts pupil

question

does the trochlear nerve have sensory or motor function

answer

somatic motor

question

what is the somatic motor function of the Trochlear nerve

answer

innervates superior oblique eye movement

question

does the trigeminal nerve have sensory or motor function

answer

general somatic sensory somatic motor

question

what is the largest cranial nerve that has 3 divisions which pass through different foramens of the skull HEADACHES

answer

trigeminal

question

what is the general somatic sensory function of the trigeminal nerve

answer

innervates the face

question

what is the somatic motor function of the trigeminal nerve

answer

contracts muscles to chew

question

does the abducens nerve have sensory or motor function

answer

somatic motor

question

what is the somatic motor function of the abducens hint: names because it abducts the eye

answer

innervates lateral rectus

question

does the facial nerve have sensory or motor function

answer

general somatic sensory general visceral sensory somatic motor visceral motor

question

what is the somatic motor function of the facial nerve five major branches 1) temporal 2) zygomatic 3) buccal 4) mandibular 5) cervical

answer

innervates facial muscles

question

what is the visceral motor function of the facial nerve

answer

innervates glands

question

what is the general visceral sensory function of the facial nerve makes up 2/3 of the anterior tongue

answer

taste

question

what is the general somatic sensory function of the facial nerve

answer

small patch of skin on the ear

question

does the vestibulocochlear nerve have sensory or motor function?

answer

somatic sensory some somatic motor

question

what is the somatic sensory function of the vestibulocochlear nerve

answer

hearing equilibrium

question

does the glossopharyngeal nerve have sensory or motor function?

answer

general somatic sensory general visceral sensory special visceral sensory somatic motor visceral motor

question

what is the special visceral sensory function of the glossopharyngeal nerve makes up 1/3 of the posterior tongue

answer

taste

question

what is the general visceral sensory function of the glossopharyngeal nerve

answer

resperation blood pressure

question

what is the general somatic sensory function of the glossopharyngeal nerve

answer

small patch of skin on external ear

question

what is the somatic motor function of the glossopharyngeal nerve

answer

innervates pharynx swallowing

question

what is the visceral motor function of the glossopharyngeal nerve

answer

innervates salivary glands

question

does the vagus nerve have sensory or motor function

answer

general somatic sensory general visceral sensory somatic motor visceral motor

question

does the accessory nerve have sensory or motor function

answer

somatic motor

question

does the hypoglossal nerve have sensory or motor function

answer

somatic motor

question

what is the general visceral sensory function of the vagus nerve

answer

thoracic and abdominal viscera respiration blood pressure

question

what is the special visceral sensory function of the vagus nerve

answer

taste buds on epiglottis

question

what is the general somatic sensory function of the vagus nerve

answer

small patch of skin on external ear

question

what is the somatic motor function of the vagus nerve

answer

innervates skeletal muscle of pharynx swallowing

question

what is the visceral motor function of the vagus nerve

answer

innervates heart, lungs, abdomin

question

what is the somatic motor function of the accessory nerve hint: DOES NOT RISE FROM BRAIN STEM

answer

innervates trapezius and sternocleidomastoid muscles

question

what is the somatic motor function of the hypoglossal nerve hint: helps to speak

answer

innervates muscles of the tongue

question

origin: arise from a series of roots from the ventral medulla oblongata

answer

hypoglossal

question

Pathway: exit the skull through the hypoglossal canal and travels to the tongue

answer

hypoglossal

question

origin: forms from ventral rootlets arising from C1-C5 of the spinal cord. Long considered to have both a cranial and a spinal portion, cranial rootlets have been shown to be part of the vagus nerves

answer

accessory

question

pathway: spinal rootlets merge to form the nerves, pass into the skull through the foramen magnum and exit the skull through the jugular foramen

answer

accessory nerve

question

origin: fibers emerge from medulla oblongata

answer

vagus

question

pathway: fibers exit the skull through the jugular foramen and descend through the neck into the thorax and abdomen

answer

vagus

question

origin: fibers emerge from the medulla oblongata

answer

glossopharyngeal

question

pathway: fibers pass through the jugular foramen and travel to the pharynx

answer

glossopharyngeal

question

origin: fibers emerge from the pons, just lateral to abducens

answer

facial

question

origin: sensory receptors in the inner ear for hearing and equilibrium

answer

vestibulocochlear

question

pathway: fibers enter the temporal bone via the internal acoustic meatus and branch off to innervate the two salivary glands and tongue

answer

facial

question

pathway: from the inner ear cavity within the temporal bone, fibers pass through the internal acoustic meatus merge to form the nerve and enter the brain stem at the pons

answer

vestibulocochlear

question

origin: in the inferior pons

answer

abducens

question

pathway: pass through the superior orbital fissure to enter the orbit

answer

abducens

question

origin: sensory receptors in the skin of face

answer

trigeminal

question

pathway: through the skull: 1) superior orbital fissure 2) foramen rotundum 3) foramen ovale mandibular foramen cutaneous branch: 1) supraorbital foramen 2) infraorbital forament 3) mental forament

answer

trigeminal

question

origin: in the dorsal midbrain

answer

trochlear

question

pathway: pass ventrally around the midbrain pass through the superior orbital fissure to enter the orbit

answer

trochlear

question

origin: ventral midbrain

answer

oculomotor

question

pathway: pass through the superior orbital fissure to enter orbit innervate the iris and ciliary muscle

answer

oculomotor

question

origin: nasal cavity

answer

olfactory

question

pathway: pass through the CRIBRIFORM foramina of the ethmoid bone to synapse the bulb

answer

olfactory

question

origin: retina of the eye

answer

optic

question

pathway: pass through the optic canal of the sphenoid bone

answer

optic

question

which cranial nerves are involved in innervating the eye? a) oculomotor b) abducens c) trochlear d) oculomotor and abducens only e) all of the above

answer

all of the above

question

Which cranial nerve(s) is/are transmitted through the jugular foramina of the skull? a) accessory b) glossopharyngeal c) hypoglossal d) accessory and glossopharyngeal e) All of the listed responses are correct.

answer

accessory an dglossopharyngeal

question

which answer choice correctly identifies functions of the hypoglossal nerve a) food mixing and manipulation by the tongue; somatic motor fibers to the trapezius muscle b) tongue movements during speech and swallowing c) innervation of skeletal muscles of the pharynx; parasympathetic innervation to pupil constrictor muscles d) special sensory fibers carry information about taste; parasympathetic fibers control tear production from the lacrimal gland

answer

tongue movements during speech and swallowing

question

branches of the ______ cranial nerve are desensitized when a dentist gives a shot of Novocain which prevents pain impulse transmission from the teeth and gums

answer

trigeminal

question

the ______ nerve transmits afferent impulses for the special senses of hearing and balance

answer

vestibulocochlear

question

through which hole in the skull do the glossopharyngeal, vagus and accessory nerves pass? a) foramen ovale b) internal acoustic meatus c) foramen magnum d) jugular foramen

answer

jugular foramen

question

which nerves innervate muscles that move the eye a) Cranial nerves IV,V,VI b) Cranial nerves III,IV,VI c) cranial nerves II,III,IV d) cranial nerves II and III

answer

cranial nerves III,IV,VI

question

All except which two cranial nerves attach to the brain at the brainstem a) glossopharyngeal and hypoglossal nerves b) trigeminal and vagus nerves c) olfactory and optic nerves d) oculomotor and trochlear nerves

answer

olfactory and optic nerves

question

which cranial nerves pass through the internal acoustic meatus a) facial and vestibulocochlear nerves b) vestibulocochlear nerve and branches of trigeminal nerve c) glossopharyngeal, vagus, and accessory nerves d) oculomotor, trochlear, and abducens nerves

answer

facial and vestibulocochlear

question

what do cranial nerves I, II, and VII have in common a) they all transmit gustatory (taste) impulses b) they all transmit special sensory impulses c) they all transmit general somatic motor impulses d) they all transmit visceral motor impulses

answer

they all transmit special sensory impulses

question

the _______ nerve is the only cranial nerve to innervate structures of the thoracic cavity and abdomen

answer

vagus

question

paralysis or damage to the trochlear nerve results in __________ a) the eyeball turning medially when at rest b) diminished ability to swallow c) double vision and reduced ability to rotate the eye inferolaterally d) diminished ability to speak e) loss of sympathetic motor innervation to the heart, lungs, and abdominal viscera

answer

double vision and reduced ability to rotate the eye inferolaterally

question

if your patient had problems tasting on the anterior two thirds of his tongue, you would suspect damage to the _______ nerve

answer

facial

question

the ______ nerve transmits parasympathetic visceromotor impulses to the parotid salivary gland and relays sensory impulses from chemoreceptors in the carotid body

answer

glossopharyngeal

question

the oculomotor nerve _____ a) directs somatic motor impulses to the superior oblique muscle b) rotates the eye inferolaterally c) directs somatic motor axons to four of the six extrinsic eye muscles and also transmits parasympathetic visceromotor impulses to pupillar constrictor muscle of the eye d) direct somatic motor impulses to the lateral rectus muscles and relays proprioceptive impulses from the same muscle to the brain e) directs visual impulses to the primary visual cortex

answer

directs somatic motor axons to four of the six extrinsic eye muscles and also transmits parasympathetic visceromotor impulses to pupillar constrictor muscle of the eye

question

Identify ALL of the cranial nerves that transmit gustatory (taste) impulses a) trigeminal and facial b) hypoglossal, glossopharyngeal, and vagus c) trigeminal and hypoglossal d) only facial and glossopharyngeal e) facial, glossopharyngeal, and vagus

answer

facial, glossopharyngeal, and vagus

question

cranial nerves III, VII, IX, and X a) are primarily or exclusively motor nerves that are comprised of somatic motor axons to skeletal muscles of the eye, neck, and tongue b) each contain general visceral motor axons and are characterized as nerves of the parasympathetic division of the autonomic nervous system

answer

each contain general visceral motor axons and are characterized as nerves of the parasympathetic division of the autonomic nervous system

question

which type of fibers are found in the hypoglossal nerve a) sensor and motor to the entire tongue b) motor to the muscles of the tongue c) sensory from the anterior 2/3 of the tongue; motor to extrinsic muscles of the tongue d) motor to the intrinsic muscles of the tongue

answer

motor to the muscles of the tongue

question

which cranial nerve, along with the abducens and oculomotor nerves, has somatic motor fibers that pass through the superior orbital fissure

answer

IV

question

which cranial nerve pair has two sensory branches which both pass through the internal acoustic meatus

answer

VIII

question

which nerve, along with XI and XII relays only somatic motor impulses

answer

IV

question

which cranial nerve pair is characterized by somatic sensory fibers crossing at the ventral midline of the brain

answer

II

question

which cranial nerve pair along with nerve III has fibers that pass through the superior orbital fissure

answer

IV

question

which cranial nerve pair, similar to cranial nerve II, runs through a canal that bears the same name

answer

XII

question

damage to which cranial nerve pair can cause difficulties in speech and swallowing

answer

XII

question

damage to which cranial nerve pair can cause deafness and problems with equilibrium

answer

VIII

question

which cranial nerve pair has three major branches, the maxillary, mandibular, and ophthalmic divisions LARGEST IN DIAMETER

answer

V

question

which cranial nerve pair along with the vagus and glossopharyngeal nerves, exits through the jugular foramen

answer

XI

question

damage to which cranial nerve pair may result in anosmia

answer

I

question

cranial nerve that provides innervation to one of the extrinsic eye muscles

answer

trochlear

question

what is the only cranial nerve that has fibers that enter and leave the skull through different foramen

answer

XI

question

which cranial nerves have fibers that relay somatic motor impulses to pharyngeal muscles during swallowing a) IX and X b) V and XII c) I and II d) VI and VII

answer

IX and X

question

a person that cannot blink or smile could have damage to this nerve

answer

VII

question

cranial nerve pair is comprised of ventral rootlets from C1-C5

answer

accessory

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