Lab 6

Question 1

Two major cell types of Nervous tissue

Answer 1

support cells

neurons

Question 2

What is the function of neuroglia

Answer 2

provide physical and metabolic support to neurons

Question 3

Types of support cells

Answer 3

astrocytes (CNS)
ependymal cells
microglia
oligodendrocytes
neurolemmocytes (PNS)
satellite cells

Question 4

Function of neurons

Answer 4

cells that initiate signals

Question 5

Function of dendrites

Answer 5

bring signals to cell body

Question 6

Function of axons

Answer 6

send signals away from cell body

Question 7

Ganglia

Answer 7

where cell bodies are located in groups outside of CNS

Question 8

Unipolar neurons

Answer 8

single, short process that divides into central and peripheral process
sensory neurons

Question 9

Bipolar neurons

Answer 9

one axon and one dendrite

found in eyes, ears, and nose

Question 10

Multipolar neurons

Answer 10

single axon, many dendrites
motor neurons
carry from CNS to PNS
most plentiful

Question 11

myelin sheath

Answer 11

layer of insulation that increases velocity of signal transmission

Question 12

myelin sheath made of

Answer 12

oligodendrocytes in CNS

Schwann cell/neurolemmocyte in PNS

Question 13

Glial Cells/neuroglia

Answer 13

numerous dark dots that are nuclei of support cells

Question 14

dorsal root ganglia

Answer 14

dark structures on eaither side of spinal cord

contain nerve cell bodies of unipolar neurons

Question 15

afferent

Answer 15

sensory coming in

Question 16

efferent

Answer 16

motor

sensory going out