Term 2 Nervous Supply to Upper Limbs Flashcards
Which category of nerves supply the upper limbs?
Spinal Nerves and their branches
What nervous system are spinal nerves and their branches a part of?
The peripheral nervous system
Spinal nerves associate with the __________
Spinal cord
Spinal nerves are arranged as _______ _______ with their associated ________ _______
Spinal nerves are arranged as parallel axons with their associated neuroglial cells
What three layers of connective tissue surround the spinal nerves?
- Endoneurium (surrounds axons)
- Perineurium (surrounds fascicle)
- Epineurium (surrounds entire nerve)
Label the flow diagram that shows the organization of spinal nerves:
Continuing flow diagram of nerve organization starting from the motor anterior root and sensory posterior root
What are plexuses?
- Networks formed from the axons from the anterior rami of spinal nerves (with exception of T2-T12) on both the left and right sides of the body
- Axons do not go directly to the body structures they service
Name six major body plexuses:
- Cervical plexus
- brachial plexus
- Lumbar plexus
- Sacral Plexus
- Two smaller cocygeal plexuses