Unit 2: Biological Bases of Behavior

Question 1

Neural cell

Answer 1

Neuron

Question 2

Made up of specific structures: dendrites, cell body, axon, and terminal buttons

Answer 2

Neuron

Question 3

Rootlike parts of the cell that stretch out from the cell body

Answer 3

Dendrites

Question 4

Grow to make synaptic connections with other neurons

Answer 4

Dendrites

Question 5

Contains the nucleus and other parts of the cell needed to sustain its life

Answer 5

Cell body (soma)

Question 6

Wirelike structure ending in the terminal buttons that extends from the cell body

Answer 6

Axon

Question 7

Fatty covering around the axon of some neurons that speeds neural impulses

Answer 7

Myelin Sheath

Question 8

Branched end of the axon that contains neurotransmitters

Answer 8

Terminal buttons (end buttons, axon terminal, terminal branches of axon, and synaptic knobs)

Question 9

Chemicals (such as dopamine and serotonin) contained in terminal buttons that enable neurons to communicate

Answer 9

Neurotransmitters

Question 10

Fit into receptor sites on the dendrites of neurons like a key fits into a lock

Answer 10

Neurotransmitters

Question 11

Space between the terminal buttons of one neuron and the dendrites of the next neuron

Answer 11

Synapse

Question 12

Areas on a dendrite designed to receive a specific neurotransmitter

Answer 12

Receptor sites

Question 13

Level of neurotransmitters required to “fire” a neuron

Answer 13

Threshold

Question 14

Electric charge that spreads down the length of a neuron after the threshold is achieved

Answer 14

Action potential