Spinal Nerves Flashcards
What does knowledge of the structure and physiology of the nervous system allow?
Understanding of how damage to different areas may present
What emerges at the spinal level?
31 pairs of mixed motor and sensory bundles emerge
What are the regions of the spine?
- Cervical
- Thoracic
- Lumbar
- Sacral
- Coccygeal
How many pairs of nerves arise from the cervical region of the spine?
8
How many pairs of nerves arise from the thoracic region of the spine?
12
How many pairs of nerves arise from the lumbar region of the spine?
5
How many pairs of nerves arise from the sacral region of the spine?
5
How many pairs of nerves arise from the coccygeal region of the spine?
1
What do the nerves arising from the spine produce?
They further combine to produce nervous plexi
What plexi are formed from nerves arising from the spine?
- Cervical plexus
- Brachial plexus
- Lumbar plexus
- Sacral plexus
- Coccygeal plexus
What nerves form the cervical plexus?
C1-4
What does the cervical plexus innervate?
- Muscles and skin of shoulder and neck
- Diaphragm
What nerve innervates the diaphragm?
Phrenic nerve
What nerves form the brachial plexus?
C5-8, T1
What does the brachial plexus innervate?
Muscles and skin from the base of the neck to the fingertips
