Lab Chapter 7: Nervous Tissue

Question 1

Support Cells

Answer 1

cells that provide physical and metabolic support to the neurons

Question 2

Neuron

Answer 2

the structural and functional unit of the nervous system

Question 3

Unipolar neurons

Answer 3

cells that have a single, very short process that divides into a central and a peripheral process

Question 4

Sensory neurons

Answer 4

unipolar neurons that conduct sensory information from the periphery to the CNS

Question 5

Bipolar neurons

Answer 5

cells that have two processes, one axon and one dendrite

Question 6

Multipolar neurons

Answer 6

cells that contain multiple processes that consist of a single axon and many dendrites; most plentiful type of neuron

Question 7

Motor neurons

Answer 7

multipolar neurons that conduct information pertaining to motor skills from the CNS to areas of the PNS

Question 8

Endoneurium

Answer 8

a layer of connective tissue that covers the axon of each neuron

Question 9

Myelin Sheath

Answer 9

A layer of insulation on axons that greatly increases the velocity of signal transmission

Question 10

Neurolemmocyte (Schwann Cell)

Answer 10

Specialized type of support cell that surrounds axons in the PNS and contains myelin

Question 11

Node of Ranvier (Myelin Sheath Gap)

Answer 11

the space between adjacent neurolemmocytes

Question 12

Dorsal Root Ganglia

Answer 12

dark, pink-staining structures located on either side of the spinal cord; contain nerve cell bodies of unipolar neurons