Cranial Nerves Flashcards
What is Cranial Nerve I, what kind of nerve is it, and what does it do?
CN I: Olfactory
- sensory:
- smell
What is Cranial Nerve II, what kind of nerve is it, and what does it do?
CN II: Optic
- sensory/motor
- vision
What is Cranial Nerve III, what kind of nerve is it, and what does it do?
CN III: Oculomotor
- motor:
- eye movements (most controlled by CN III)
- pupillary constriction - direct and consensual
- accommodation - near focus of eye
What is Cranial Nerve IV, what kind of nerve is it, and what does it do?
CN IV: Trochlear
- motor:
- Superior Oblique muscle (crossing eyes with downward gaze)
What is Cranial Nerve V, what kind of nerve is it, and what does it do?
CN V: Trigeminal
- motor:
- mastication
- sensory:
- face
- nasal and buccal mucosa
- teeth
What is Cranial Nerve VI, what kind of nerve is it, and what does it do?
CN VI: Abducens
- motor:
- Lateral Rectus muscle (lateral eye movement/abduction of eyes)
What is Cranial Nerve VII, what kind of nerve is it, and what does it do?
CN VII: Facial
- motor:
- facial muscles
- speech - sensory:
- supplies taste to anterior 2/3 tongue
What is Cranial Nerve VIII, what kind of nerve is it, and what does it do?
CN VIII: Vestibulocochlear
- sensory:
- hearing
- balance
- awareness of position
What is Cranial Nerve IX, what kind of nerve is it, and what does it do?
CN IX: Glossopharyngeal
- sensory:
- pharynx
- posterior 1/3 tongue
What is Cranial Nerve X, what kind of nerve is it, and what does it do?
CN X: Vagus
- sensory:
- ear
- meninges
- viscera
- motor:
- pharynx
- larynx
- parasympathetic:
- viscera of the chest
- abdomen
What is Cranial Nerve XI, what kind of nerve is it, and what does it do?
CN XI: Spinal Accessory
- motor:
- Sternocleidomastoid muscle
- Trapezius muscle
What is Cranial Nerve XII, what kind of nerve is it, and what does it do?
CN XII: Hypoglossal
- motor:
- tongue muscles
