Flashcards
Cranial nerves lecture
Cards in this deck (17)
- 1CN I (olfactory nerve)function: special sense of smell
S/M/B: special sensory
pathway: lines the mucosa of the nose and travels through the cribiform plate to enter the skull - 2CN II (optic nerve)function: special sense of sight
S/M/B: special sensory
pathway: travel with the retina and enter the skull through the optic canal - 3CN III (oculomotor nerve)*PARASYMPATHETIC!!! dilates pupil*
function: innervate the extraocular muscles of the eye and dilate the pupil
S/M/B: motor
pathway: emerges from the midbrain and leaves the skull through the superior orbital fissure - 4CN IV (trochlear nerve)function: innervate ONE extraocular eye muscle
S/M/B: motor
pathway: emerges from the dorsal side of the midbrain and exits the skull through the superior orbital fissure - 5CN V1OPHTHALAMIC
function: general sensory for the forehead, nose, and external surface of eyeball
S/M/B: sensory
pathway: receptors are distributed throughout the skin and enter the skull through the superior orbital fissure - 6CN V2MAXILLARY
function: general sensory for the temple, cheek, upper lip, and maxillary teeth
S/M/B: sensory
pathway: receptors are distributed throughout the skin and enter the skull through the foramen rotundum - 7CN V3MANDIBULAR
function: general sensory for the jaw line, lower lip, tongue, and mandibular teeth
S/M/B: sensory and motor (for muscles of mastication)
pathway: receptors are distributed throughout the skin and MoM and enter the skull through the foramen ovale - 8CN VI (abducens nerve)function: innervate ONE extraocular eye muscle
S/M/B: motor
pathway: emerges from the pontomedullary junction and exits the skull through the superior orbital fissure - 9what nerves innervate which extraocular eye musclesSO4 LR6 AO3
CN IV- superior oblique m
CN VI- lateral rectus m
CN III- all other extraocular eye mm - 10CN VII (facial nerve)*PARASYMPATHETIC!!! saliva & tear production*
function: innervate motor muscles of facial expression, lacrimal and salivary glands, and special sense of taste (anterior 2/3)
S/M/B: special sensory and motor
pathway:
motor: emerges from the brainstem and travels through the internal acoustic meatus to exit the skull through the stylomastoid foramen
parasympathetics: emerges from the brainstem and travels through the internal acoutic meatus to exit the skull through the foramen lacerum
sensory: travels from the anterior 2/3 part of tongue through the petrotympanic fissure and enters the brainstem through the internal acoustic meatus - 115 branches of CN VIITemporal
Zygomatic
Buccal
Mandibular
Cervical
(Ten Zoos Bought Mean Crocodiles) - 12CN VIII (vestibulocochlear nerve)function: balance and special sense of hearing
S/M/B: special sensory
pathway: housed in the middle ear and travels through the temporal bone to enter the skull through the internal acoustic meatus - 13CN IX (glossopharyngeal nerve)*PARASYMPATHETIC!!! saliva*
function: motor innervation for the stylopharygneus muscle, special sense of taste to the posterior 1/3 of tongue, and general sensory for tongue
S/M/B: special sensory and motor
pathway: enters/exits the skull through the jugular foramen - 14CN X (vagus nerve)*PARASYMPATHETIC!!! heart rate, breathing, etc*
function: motor innervation to the muscles of the palate and pharynx, special sense of taste to the epiglottis, and general sensory to ear and throat
S/M/B: special sensory and motor
pathway: enters/exits the skull through the jugular foramen - 15CN XI (spinal accessory nerve)function: motor innervation to the sternocleidomastoid and trapezius muscles
S/M/B: motor
pathway: enters the skull through the foramen magnum and exits the skull through the jugular foramen - 16CN XII (hypoglossal nerve)function: motor innervation to muscles of the tongue
S/M/B: motor
pathway: exits the skull through the hypoglossal canal - 17nerves that travel through the jugular foramenCN IX (glossopharyngeal)
CN X (vagus)
CN XI (spinal accesory)
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- AP KAAP309 Flashcards on Cranial nerves lecture, created by Erin Dacey on 15/12/2021.
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- Erin Dacey
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