Unit 2 Peripheral Nervous System Flashcards
1
Q
Cervical Enlargement
A
- Cervical plexus
- Brachial plexus
2
Q
Lumbar Enlargement
A
- Lumbar plexus
- Sacral plexus
3
Q
Plexuses
A
- Combination of anterior rami of spinal nerves
4
Q
Multisegmental Peripheral Nerves
A
- Emerge from plexus
5
Q
Spinal Enlargements
A
- Greater number of neurons exiting
- Cervical & lumbar enlargements
6
Q
Plexus Locations
A
- Cervical
- Brachial
- Lumbar
- Sacral
7
Q
Cauda Equina
A
- Remaining structure after L1-L2
- Composition of spinal nerves
8
Q
Intervertebral Foramen
A
- Spinal nerves exit
9
Q
Sensory Information Pathway
A
- Entering spinal cord
- Through dorsal/ventral rami
- Travel through spinal nerve
- Through dorsal root
- To dorsal horn
10
Q
Motor Information Pathway
A
- Start in ventral horn
- Proceed out through ventral route
- Spinal nerve
- Split to dorsal & ventral rami
- Exit spinal cord
11
Q
Posterior Ramus
A
- Innervates deep muscles of back
12
Q
Anterior Ramus
A
- Innervates everything else
13
Q
Rami Communicantes
A
- Part of autonomic NS
- Innervate sympathetic trunk
14
Q
Spinal Nerve & Rami
A
- Contain both motor & sensory
15
Q
Radial Nerve
A
- Contain information for C5-T1
