Microanatomy of Nervous Tissue

Question 1

create the myelin sheath in the PNS

Answer 1

Schwann cells

Question 2

ciliated cells in the CNS that form and circulate cerebrospinal fluid

Answer 2

Ependymal cells

Question 3

surround the cell bodies of neurons in the PNS

Answer 3

Satellite cells

Question 4

• anchor neurons and blood vessels
• maintain extracellular environment around neurons
• assist in the formation of the blood-brain barrier

Answer 4

Astrocytes

Question 5

phagocytic cells of the CNS

Answer 5

Microglial cells

Question 6

form the myelin sheath in the CNS

Answer 6

Oligodendrocytes

Question 7

non-excitable cells of neural tissue that support, protect, and insulate the neurons

Answer 7

Neuroglia (glial cells)

Question 8

cone-shaped area of the cell body where the axon rises from

Answer 8

Axon hillock

Question 9

knoblike distal endings of the terminal branches

Answer 9

Axon terminals

Question 10

fatty insulating sheath that surrounds all but the smallest nerve fibers

Answer 10

Myelin sheath

Question 11

gaps between the myelin sheaths

Answer 11

Nodes of Ranvier

Question 12

How are neurons classified?

Answer 12

Structure and function

Question 13

What are the structures of neurons?

Answer 13

• pseudo/unipolar
• bipolar
• multipolar

Question 14

What are the functions of neurons?

Answer 14

• sensory (afferent) neurons
• association (integration) neurons
• motor (efferent) neurons