Nervous Tissue

Question 1

Nervous system

Answer 1

central
-brain and spinal cord -neurons and glia(oligodendrocytes, microglia, astrocytes)

PNS
-ganglia
peripheral nerves
plexi (GI tract)
glia: shwan cells, satellite cells

Question 2

Nervous tissue is categorized on the basis of?

Answer 2

ability to conduct electrical impulses via AP

Question 3

FUnctionally the NS is divided into

Answer 3

somatic NS–> voluntary

Autonomic NS–> involuntary -sympa and parasympathetic divisions

Question 4

3 important regions of the neuron

Answer 4

dendrite
cell body
axon

Question 5

What is included in the nissle body?

Answer 5

RER and free ribosomes

-stains basophilic

Question 6

Myelin

Answer 6

fxn: structural and metabolic support of neurons- increase AP conduction velocity
shwann cells-PNS
oligodendrocytes -CNS

Question 7

Meninges

Answer 7

mechanical suspension of CNS 
layers:
-dura mater (hard mother)
-arachnoid mater
-pia mater (tender mother)
CSF within subarachnoid space

Question 8

Central canal is continuous with ______

Answer 8

subarachnoid space

Question 9

Peripheral nerves

Answer 9

contain combination of afferent and efferent nerve fibres

CT suport network:
epinerium-outermost
perinerium-middle
endoneurium-inner

Question 10

Types of ganglia

Answer 10

sensory- dorsal root
autonomic-
sympathetic- along vertebral column
parasympathetic- in target organs