Peripheral & Autonomic System Flashcards
How many pairs of cranial nerves are there?
12
What is the name of CN I?
Olfactory nerve
What is the function of CN I?
Sensory: smell
What is the name of CN II?
Optic nerve
What is the function of CN II?
Sensory: vision
What is the name of CN III?
Oculomotor nerve
What is the function of CN III?
Motor: Control of extra-ocular eye muscles
Superior, inferior + medial rectus, inferior oblique, levator palpebrae superioris
What is the name of CN IV?
Trochlear nerve
What is the function of CN IV?
Motor: Control of extra-ocular eye muscles
Superior oblique
What is the name of CN V?
Trigeminal nerve
What is the function of CN V?
Sensory: - Ophthalmic (forehead, eyelid, nose) - Maxillary (lower eyelid, upper lip + cheek) Motor: - Mandibular (motor mastication)
What is the name of CN VI?
Abducens nerve
What is the function of CN VI?
Motor: Controls eye movements
What is the name of CN VII?
Facial nerve
What is the function of CN VII?
Sensory: Face + taste
Motor: Controls facial muscles
What is the name of CN VIII?
Vestibulocochlear nerve
What is the function of CN VIII?
Sensory: balance & hearing
What is the name of CN IX?
Glossopharyngeal nerve
What is the function of CN IX?
Sensory: Tongue pain
Motor: Swallowing
What is the name of CN X?
Vagus nerve
What is the function of CN X?
Sensory: information from organs
Motor: sends information to the organs
What is the name of CN XI?
Accessory nerve
What is the function of CN XI?
Motor: Controls the sternocleidomastoid, trapezius, palate, pharynx + larynx muscles
What is the name of CN XII?
Hypoglossal nerve
What is the function of hypoglossal nerve?
Motor: controls tongue movement
Which CNs only have sensory function?
1, 2 & 8
Which CNs only have motor function?
3, 4, 6, 11 & 12