Neuro 12: Brainstem surface and cranial nerves Flashcards by Albert Bouwer

Q

Brainstem sections top to bottom

A

Midbrain

Pons

Medulla

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Q

CN I Name and function

A

Olfactory

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Q

CN 2 Name and function

A

Optic

Vision

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Q

CN III Name and function

A

Oculomotor

Eye movements, eye opening, pupil constriction

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Q

CN IV Name and function

A

Trhoclear nerve

Eye movement down and in. SO muscle

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Q

CN V Name and function

A

Trigeminal nerve

Chewing and facial sense

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Q

CN VI Name and function

A

Abducens

Abduction of eye

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Q

CN VII Name and function

A

Facial nerve

Facial expression muscle

Taste anterior tongue

Lacrimation and salivation

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Q

CN VIII Name and function

A

Vestibulocochlear nerve

Hearing, equilibrium

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Q

CN IX Name and function

A

Glossopharyngeal

Phrayngeal muscles, patorid gland

Gag afferent

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Q

CN X Name and function

A

Vagus

Parasympathetics to everything

Laryngeal muscles, pharyngeal muscles

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Q

CN XI Name and function

A

Spinal accessory nerve

Shoulder shrug

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Q

CN XII

A

Hypoglossal nerve

Tongue movements

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Q

Cervical limit of brainstem

A

Cervico medullary junction

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Q

Rostral limit of brainstem

A

Midbrain-diancephalic junction

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Q

Superior and inferior colliculi form

A

tectum of midbrain

Q

Cerebral punduncles

A

Ventral part of midbrain that looks like pillars

Q

Olfactory nerve enters the forebrain at

A

Olfactory bulbs and tracts

Q

Optic nerve enters forebrain at

A

Lateral geniculate nucleus of thalmus

Q

CN III emerges

A

ventrally from interpeduncular fossa of midbrain

Q

CN IV emerges

A

dorsal midbrain trochlear nucleus

Q

CN V exits from

A

Ventrolateral pons

Q

Nerves exiting from superior orbital fissure

A

III, IV, VI and V1

Q

Nerve exiting foramen rotundum

A

V2 Maxillary

Nerve exiting foramen ovale

V3 Mandibular

Nerves exiting internal auditory meatus

VII and VIII

Nerves exiting stylomastoid foramen

VII after it goes through auditory meatus

Nerves from jugular foramen

IX, X, XI

Hypoglossal canal nerves

Hypoglossal nerve duh

Visceral efferent nucleus CN III

Eidinger-Westphal

Motor nucleus CN III

Occulomotor nucleus

CN V Motor nucleus

Trigeminal motor nucleus

CN VII visceral nucleus

Superior salivatory nucleus

Inferior salivatory nucleus

CN IX

CN I and II deficit suggests

Lesion at base of frontal lobes

Bell’s palsy symptoms

Full facial paralysis Decreased lacrimation Retroauricular pain

Unilateral hearing loss lesion must happen _______ brainstem

Outside of