Shared Flashcard Set

Details

Cranial Nerves
the 12 cranial nerves, functions and orgins
12
Anatomy
Undergraduate 2
10/28/2009

Additional Anatomy Flashcards

 


 

Cards

Term
Cranial Nerve I Olfactory
Definition
smell (olfactory bulbs)
special sense
goes directly to the cortex, bipasses the brainstem and thalamus
Term
Cranial Nerve II Optic
Definition
receives sensory from retina, information sent directly to higher centers
Term
Cranial Nerve III Oculomotor
Definition
moves muscles of eye and eyelid(somatomotor) and lens and pupil (visceromotor) orgin in the midbrain
Term
Cranial Nerve IV Trochlear
Definition
moves the eyeball medially, origin in the midbrain
Term
Cranial Nerve V Trigeminal
Definition
sensory from the face and the teeth
sensory
motor to muscles of mastication
origin in the pons
Term
Cranial Nerve VI Abducens
Definition
lateral eye movement
motor
origin in the inferior pons
Term
Cranial Nerve VII Facial
Definition
motor to the muscles of facial expression
taste from the anterior 2/3 of the tongue (special sense)
visceromotor to almost all glands of the head
origin
sensory from anterior two-thirds of tongue
motor from pons
Term
Cranial Nerve VIII Vestibulocochlear
Definition
hearing and equilibrium (special sensory)
motor fibers that lead to cells of the cochlea that tune the sense of hearing
origin
sensory-cochlea, vestibule, and semicircular duct of inner ear
motor-pons
Term
Cranial Nerve IX Glossophryngeal
Definition
both special sensation (taste) and general sensation from the posterior tongue
general sensation from the pharynx
salivary gland secretion (parotid gland, visceromotor)
sensation from the carotid body and sinus for monitoring blood pressure and O2 saturation (viscerosensory)
medulla oblongata origin for motor and termination for sensory
Term
Cranial Nerve X Vagus
Definition
Innervates skeletal muscles of larynx, pharynx and palate
Innervates smooth muscle of thoracic and abdominal organs, and glands (visceromotor)
Carries sensation from the thoracic and abdominal cavities (viscerosensory)
medulla oblongata
Term
Cranial Nerve XII Hypoglossal
Definition
motor to the skeletal muscles of the tongue
medulla oblongata
Term
Cranial Nerve XI Spinal Accessory
Definition
Originates in the spinal cord, innervates two muscles in the neck, sternocleidomastoid and trapezius
Supporting users have an ad free experience!