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Psychology in Action

Karen Huffman, Katherine Dowdell, Catherine A. Sanderson

Chapter 2

Neuroscience and Biological Foundations - all with Video Answers

Educators

Section 1

Neural Bases of Behavior

01:32

Problem 1

Identify the five key parts of a neuron.

Samia Islam
Samia Islam
Numerade Educator
00:52

Problem 2

An action potential is _______ .
a. the likelihood that a neuron will take action when stimulated
b. the tendency for a neuron to be potentiated by neurotransmitters
c. the firing of a nerve, either toward or away from the brain
d. a neural impulse that carries information along the axon of a neuron

Samia Islam
Samia Islam
Numerade Educator
00:54

Problem 3

According to the all-or-nothing principle, ________.
a. a neuron cannot fire again during the refractory period
b. a neurotransmitter either attaches to a receptor site or is destroyed in the synapse
c. a neuron either fires completely or not at all
d. none of these options is correct

Samia Islam
Samia Islam
Numerade Educator
00:36

Problem 4

Chemical messengers that are released by neurons and travel across the synapse are called _________ .
a. chemical agonists
b. neurotransmitters
c. synaptic transmitter
d. neuroactivists

Samia Islam
Samia Islam
Numerade Educator
00:39

Problem 5

Chemicals manufactured and secreted by endocrine glands and circulated in the bloodstream to change or maintain bodily functions are called ______.
a. vasopressors
b. neurotransmitters
c. hormones
d. chemical antagonists

Samia Islam
Samia Islam
Numerade Educator