2023-11-05T02:37:03+03:00[Europe/Moscow] en true <p>how many pairs of cranial nerves are there?</p>, <p>what structures do they serve?</p>, <p>what is the first cranial nerve and its function?</p>, <p>what is the second cranial nerve and its function?</p>, <p>what is the third cranial nerve and its function</p>, <p>what is the fourth cranial nerve and its function?</p>, <p>what is the fifth cranial nerve and its function?</p>, <p>what is the sixth cranial nerve and its function?</p>, <p>what is the seventh cranial nerve and its function?</p>, <p>what is the eighth cranial nerve and its function?</p>, <p>what is the ninth cranial nerve and its function?</p>, <p>what is the tenth cranial nerve and its function?</p>, <p>what is the eleventh cranial nerve and its function?</p>, <p>what is the twelfth cranial nerve and its function? </p> flashcards
chapter 13 cranial nerves

chapter 13 cranial nerves

Customize
collection saved
Share
Long Term Learning Spaced Repetition
Add to Long Term Learning Desk
Fast learning Repeat this set of flashcards
Preview Test Spell
Play
Match
Review

  • how many pairs of cranial nerves are there?

    12 pairs

  • what structures do they serve?

    head and neck with the exception of the vagus nerve that extends into the abdomen

  • what is the first cranial nerve and its function?

    I Olfactory

    afferent impulses for sense of smell

  • what is the second cranial nerve and its function?

    ll Optic

    afferent impulses for vision

  • what is the third cranial nerve and its function

    lll Oculomotor

    -somatic motor fibers that direct eyeball and raise upper eyelid

    -autonomic motor nerve fibers for pupil constriction and visual focusing

    -proprioceptor afferents

  • what is the fourth cranial nerve and its function?

    IV Trochlear

    -primarily motor nerves

    -supplies somatic nerve fibers to superior oblique muscle of extrinsic eye

  • what is the fifth cranial nerve and its function?

    V Trigeminal

    -general sensation

  • what is the sixth cranial nerve and its function?

    VI abducens

    -supplies somatic motor fibers to lateral rectus muscle, an extrinsic muscle of the eye

  • what is the seventh cranial nerve and its function?

    VII facial

    -mixed nerves

    -motor impulses to skeletal muscles of face for facial expressions

    -transmits parasympathetic motor impulses to glands

    -taste

  • what is the eighth cranial nerve and its function?

    VIII vestibulocochlear

    -sensory, hearing

    -afferent impulses for equilibrium and balance

  • what is the ninth cranial nerve and its function?

    IX glossopharyngeal

    -mixed nerves that innervate tongue and pharynx

    -parasympathetic motor nerve fibers for salivary glands

    -sensory fibers for taste

  • what is the tenth cranial nerve and its function?

    X vagus

    -mixed nerves

    -parasympathetic motor fibers supply heart, lungs, and abdominal viscera

    -involved in regulating heart beat, breathing, and digestive system activtiy

    -motor fibers for pharynx and larynx

    -sensory fibers, taste

  • what is the eleventh cranial nerve and its function?

    XI accessory

    -mixed nerves

    -primarily motor in function

    -supply motor fibers to trapezius and sternocleidomastoid muscles

    -proprioceptor impulses from same muscles

  • what is the twelfth cranial nerve and its function?

    XII hypoglossal

    -mixed nerves

    -somatic motor fibers and proprioceptor fibers to muscles of tongue

    -tongue movements to manipulate food during chewing

    -swallowing and speech