Chapter 2 Test Flashcards
What does phrenology focus on?
Phrenology focuses on the shape and size of the head, as an indicator of character and mental abilities.
What is the biological perspective?
The body and mind are thought to be connected in the biological perspective.
What do psychologists in the biological perspective like to study?
Psychologists in the biological perspective like to study how genes affect behavior.
What does it mean when psychologists say people are biopsychosocial?
Psychologists mean that biological, psychological, and social factors play a role in human functioning.
What are the parts of the neuron?
The parts of the neuron are the cell body, the axon, the dendrites, the action potential, the myelin sheath, and the terminal branches of the axon.
What is the cell body?
The cell body is the cell’s life support center.
What are dendrites?
Dendrites are branches that RECEIVE messages from other cells.
What are axons?
Axons are branches that pass messages away from the cell body to other neurons.
What are the terminal branches of the axon?
The terminal branches of the axon form junctions with other cells.
What is action potential?
Action potential is an electrical signal traveling down the axon.
What is multiple sclerosis and how do you get it?
Multiple sclerosis is a condition where people experience difficulty walking and inability to rapidly move as a result of the degeneration of the myelin sheath.
How is action potential generated?
Action potential is generated by a neuron in response to a chemical signal from neighboring neurons or when stimulated by senses.
What is the resting potential of an axon?
Resting potential occurs when the fluid outside an axon’s membrane has positively charged ions and the fluid within an axon has negatively charged ions.
What is a threshold?
A threshold is the level of stimulation required to trigger a neural impulse.
What is a synapse?
A synapse is the junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron.