12.2 – Properties of Neurons

Question 1

list the 3 functional classes of neurons

Answer 1

sensory neurons
motor neurons
interneurons

Question 2

which type of neuron begins in most body organs and carries info toward the central nervous system?

Answer 2

sensory

Question 3

which term refers to the part of the PNS that carries signals from various receptors to the CNS?

Answer 3

sensory division

Question 4

which term is used to describe motor neurons because they send signals away from the CNS and out to muscle and gland cells?

Answer 4

efferent

Question 5

sensory, association, and motor are the 3 classes of what?

Answer 5

neurons

Question 6

the picture shows the most common structural type of neuron. It contains one axon and multiple dendrites, and it is classified as what type of neuron?

Answer 6

multipolar

Question 7

what type of neuron has one axon and one dendrite?

Answer 7

bipolar

Question 8

which type of neuron lies entirely within the CNS and carries out the integrative function of the nervous system?

Answer 8

interneuron

Question 9

neurons w/ a single process extending from the soma, such as neurons that carry sensory signals to the spinal cord, are classified structurally as ___ neurons

Answer 9

unipolar

Question 10

motor, or ___ neurons, carry signals away from the CNS and they lead to effectors (muscle and gland cells)

Answer 10

efferent

Question 11

neurons w/ numerous dendrites and a single axon are structurally classified as which of the following?

Answer 11

multipolar

Question 12

oligodendrocytes…

Answer 12

in the CNS
resemble an octopus
a bulb that wraps around the axon and forms myelin

Question 13

a neuron with 1 axon and 1 dendrite is structurally classified as a ___ neuron

Answer 13

bipolar