nervous tissue

Question 1

nervous tissue comprised of

Answer 1

neurons
neuroglia

Question 2

which is bigger, neurons or neuroglia

Answer 2

neurons

Question 3

neuroglia general function

Answer 3

support, nourish, protect neurons

Question 4

neuron function

Answer 4

create electrical signals - communication through body

Question 5

satellite cells function

Answer 5

-structural support
-regulate exchange of materials between neuronal cell bodies and interstitial fluid

Question 6

schwann cells function

Answer 6

-form myelin sheath around axons in the PNS
-encloses one axon

Question 7

microglia function

Answer 7

-phagocytize cellular debris, microbes, damaged nervous tissue
-immune response

Question 8

ependymal cells function

Answer 8

-produce, assist, + monitor circulation of CSF in CNS
-form the blood-CSF barrier

Question 9

astrocyte function

Answer 9

1 - support neurons
2- contribute to blood brain barrier
3- maintain chemical homeostasis of extracellular fluid

Question 10

types of astrocytes

Answer 10

protoplasmic (short branches)
fibrous (long branches)

Question 11

oligodendrocyte function

Answer 11

forms + maintains myelin sheath around CNS axons
-produces myelin for multiple axons

Question 12

unipolar neurons in CNS

Answer 12

sensory neurons

Question 13

bipolar neurons in CNS

Answer 13

special senses (vision, hearing, smell)

Question 14

multipolar neurons in CNS

Answer 14

-all motor neurons
-most neurons in brain + spinal cord