Term
Cranial Nerves emerge from:
Numbered:
What are the functions
Which nerves attach to the forebrain vs brain stem
What structures do they serve? |
|
Definition
emerge from brain and pass thru foramina of skull
Numbered 1-12
both motor and sensory functions- varies
Cranial nerves 1 and 2 attach to forebrain
all others attach to brain stem
Primarily serve neck and head, but vagus nerve extends to abs and innervates visceral organs to proximal colon |
|
|
Term
|
Definition
|
|
Term
| Almost purely motor (also carry proprioception) |
|
Definition
|
|
Term
|
Definition
|
|
Term
| trapezius and sternocleidomastoid motor nervs: |
|
Definition
|
|
Term
| Tongue muscle motor nerve: |
|
Definition
|
|
Term
| Mixed Nerves-both motor and general sensory components: |
|
Definition
|
|
Term
|
Definition
| All mixed nerves except 5 carry special visceral sensory input from taste buds |
|
|
Term
Mixed Nerves of the :
Anterior Tongue-
Posterior Tongue-
Epiglotis |
|
Definition
|
|
Term
|
Definition
| olfactory nerve- sensory nerve of smell |
|
|
Term
| what is Cranial nerve II? |
|
Definition
| Optic nerve- sensory nerve of vision |
|
|
Term
| what is Cranial nerve III? |
|
Definition
| occulomotor nerve- innervates four of the extrinsic eye muscles; move eye |
|
|
Term
| what is Cranial nerve IV? |
|
Definition
| Trochlear nerve- innervates one of the extrinsic eye muscles |
|
|
Term
|
Definition
Trigeminal nerve- provides sensory innervation to face (general somatic sensory)
Motor innervation ot chewing muscles
3 divisions: ophthalamic, maxillary, mandibular |
|
|
Term
| what is Cranial nerve VI? |
|
Definition
| abducens nerve- abducts the eyeball |
|
|
Term
| what is Cranial nerve VII? |
|
Definition
Facial nerve- innervated muscles of facial expression (motor_
gerneral sesnory afferents; parasympathetic motor |
|
|
Term
| what is Cranial nerve VIII? |
|
Definition
| Vestibulocochlear Nerve- sensory nerve of hearing and balance |
|
|
Term
| what is Cranial nerve IX? |
|
Definition
| Glossopharyngeal Nerve- innervates tongue and pharynx; taste and general sensory; motor to lift pharynx; parasympathetic to parotid gland |
|
|
Term
|
Definition
Vagus nerve- A mixed sensory and motor nerve
"wanders" into thorax and abdomen |
|
|
Term
| what is Cranial nerve XI? |
|
Definition
| Accessory Nerve- part of vagus nerve |
|
|
Term
| what is Cranial nerve XII? |
|
Definition
| Hypoglossal Nerve- runs inferior to the tongue and innervates tongue muscles |
|
|
