Neurologic system, PNS
Terms
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- bundle of neuron processes in the PNS
- nerve
- peripheral nerves that arise from the brain
- cranial nerves
- peripheral nerves that arise from the spine
- spinal nerves
- mnemonic for 12 cranial nerves
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- twelve cranial nerves in order
-
olfactory
optic
oculomotor
trochlear
trigeminal
abducens
facial
vestibulocochlear
glossopharyngeal
vagus
accessory
hypoglossal - sensory cranial nerves
-
I olfactory - smell
II optic - vision
V trigenminal - general sensation
VII facial - taste
VIII vestibulocochlear - hearing/balance
IX glossopharyngeal - taste
X vagus - taste - motor cranial nerves
- all but I, II, VIII
- parasympathetic cranial nerves
- III, VII, IX, X
- cranial nerve I
- olfactory - smell
- cranial nerve II
- optic - vision
- cranial nerve III
- oculomotor - move eye, pupillary reflex
- cranial nerve IV
- trochlear - move eye
- cranial nerve V
- trigeminal - motor and sensory for face, chewing
- cranial nerve VI
- abducens - move eye
- cranial nerve VII
- facial - expression, lacrimal and salivary glands, anterior taste buds
- cranial nerve VIII
- vestibulocochlear - hearing and balance
- cranial nerve IX
- glossopharyngeal - gag/swallow, salivary glands, posterior taste, carotid baroreceptors
- cranial nerve X
- vagus - gag/swallow, viscera
- cranial nerve XI
- accessory - shoulders, throat
- cranial nerve XII
- hypoglossal - tongue
- mnemonic for function of cranial nerves
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- bundles of nerve fibers
- fascicles
- nerves C5 - T1 (arm, wrist, hand)
- brachial plexus
- nerves L2 - L4 (anterior body)
- lumbar plexus
- nerves L5 - S5 (posterior body)
- sacral plexus
- specific areas of skin innervation
- dermatomes
- nerves C1 - C5
- cervical plexus
- nerves C3 - C5
- phrenic nerve (diaphragm)