Topic 36 - Nervous tissue : definition and it's elements Flashcards
1
Q
NT origin?
A
from the neuroetoderm (notochord).
2
Q
NT function?
A
Specialized to generate and conduct impulses
3
Q
NT is composed of?
A
Composed of: nerve cells, glial cells and their processes.
Densely capilarized.
4
Q
NT is the main component of?
A
Is the main component of CNS (brain and spinal cord) and PNS (all other nerves).
5
Q
What is innvervated by the automatic nervous system
A
Viscera .
6
Q
What surrounds the CNS?
A
Meninges surround the CNS and roots of peripheral nerves. Cerebrospinal fluid exists within meninges and inside brain and spinal cord cavities.
7
Q
Classification
A
Neuron: -Uni-, bi-, pseudouni-, multi- polar Glial cells: CNS: Ependyma cells Astrocytes Oligodendroliga Microglia PNS: sattelite cells schwanns cells
