Nervous System Flashcards
1
Q
What are the components which all ganglia contain?
A
- Cell bodies of neurons
- Satellite cells around cell bodies
- Schwann cells around axons
- CT, blood vessels
2
Q
What is characteristic of Dorsal root ganglia?
A
- D = Different size cell bodies
- Cell bodies packed at the nodes; nuclei in center
3
Q
What is characteristic of sympathetic ganglion?
A
- S = Same size cell bodies
- Cell bodies scattered through and nuclei off center
4
Q
What is characteristic of parasympathetic nuclei?
A
- P = Petite
- Close to target organ
- Surrounded by Schwann cells
5
Q
What are the CT layers around nerves?
A
Epinerium - Around several bundles of gross nerves
Perineurium - Around a bundle of axons; most substantial
Endoneurium- around one axon
