cells of nervous system

Question 1

3 types of neurons

Answer 1

multipolar, bipolar, pseudo-unipolar

Question 2

multipolar neuron

Answer 2

many dendrites one axon, most motor neurons and most cns neurons

Question 3

bipolar neuron

Answer 3

1 dendrite 1 axon, found in special sense organs such as eyes and nose

Question 4

pseudo-unipolar neuron

Answer 4

appears to have single axon, most sensory neurons

Question 5

4 types of glial cells of the CNS

Answer 5

Astrocytes, ependymal cells, microglia, oligodendrocytes

Question 6

astrocytes

Answer 6

highly branched; provides strucutal support, regulate neuronal signaling, contribute to blood brain barrier, help w/ neural tissue repair

Question 7

ependymal cells

Answer 7

epithelial like; line ventricles of brain and central canal of spinal cord, circulate CSF, some form choroid plexuses which produce CSF

Question 8

microglia

Answer 8

small mobile cells; protect cns from infection, become phagocytic in response to inflammation

Question 9

oligodendrocytes

Answer 9

cells with processes that can surround several axons; cell processes form myelin sheaths around axons or enclose unmyelinated axons in the cns

Question 10

2 glial cells of pns

Answer 10

schwann cells, satellite cells

Question 11

schwann cells

Answer 11

single cells surrounding axons; form myelin sheaths around axons or enclose unmyelinated axons in the pns

Question 12

satellite cells

Answer 12

single cells surrounding cell bodies; support neurons, providing nutrients, protect neurons from heavy-mettal poisons