Psychology mod 9

Question 1

Where in the body did plato believe the “mind” was located?

Answer 1

in the brain

Question 2

how did Aristotle disagree with plato?

Answer 2

Aristotle thought the mind was in the heart

Question 3

how did franz gall contribute to the mind-body question?

Answer 3

he believed studying bumps on the skull can reveal a persons brain size, abilities, and character traits

Question 4

In what way was franz gall incorrect and right?

Answer 4

gall was right about various brain regions have particular functions. Franz was incorrect in believing brain sizes control peoples

Question 5

What happy fact allows us to study animal brains to learn about human brains?

Answer 5

information systems of humans and other animals operate similarly

Question 6

dendrite

Answer 6

• receive and integrate messages
• conduct impulses to the cell body
• listens

Question 7

cell body

Answer 7

contains nucleus; cells life support system

Question 8

axon

Answer 8

passes messages to other neurons, muscles, or glands

-speaks

Question 9

terminal branches

Answer 9

form junctions with other cells

Question 10

myelin sheath

Answer 10

allows electrical impulses to transmit quickly along nerve cells

Question 11

What is action potential and why is it important to neural communication?

Answer 11

the impulses fired when a neuron sends a message is called action potential. When a impulse is fired it travels to the axon and sends messages to other neurons, glands, or muscles

Question 12

what is the difference between an excitatory and inhibitory nerve signals?

Answer 12

excitatory pushes a neuron’s gas pedal and inhibitory pushes the brakes

Question 13

what is a threshold

Answer 13

the level of stimulation required to trigger a neural impulse

Question 14

what happens the level of neural stimulation above the threshold is increased? why?

Answer 14

the action potential travels down, branching into junctions with other neurons or the body’s muscles and glands

Question 15

what is synapse?

Answer 15

the meeting point between neurons

Question 16

how do neurons communicate with each other?

Answer 16

impulses travel to the axon, stimulates the release of neurotransmitter molecules, allows electrically charged atoms to enter a new action potential, and excess neurotransmitter get reabsorbed

Question 17

what is reuptake?

Answer 17

when excess neurotransmitters get reabsorbed and are broken down by enzymes

Question 18

what effect does the release of endorphins have on the body?

Answer 18

they control the body’s feelings

Question 19

when a neuron connects with another what happens?

Answer 19

it becomes chemical

Question 20

what does more pressure mean?

Answer 20

neurons fire faster

Question 21

what is a reuptake?

Answer 21

when nerves recycle unused neurotransmitters

Question 22

what is polarization?

Answer 22

the resting state of the neuron, charge is more positive outside the membrane and more negative inside

Question 23

what is depolarization?

Answer 23

the action potential; the rushing in and out of positively charged ions

Question 24

what is repolarization?

Answer 24

the refractory period; the closing of the membrane and re-establishing a more negative charge inside

Question 25

what do drugs and neurotransmitters determine?

Answer 25

if an impulse is exhibitory or inhibitory

ex. of inhibitory: anesthesia

Question 26

what is action potential?

Answer 26

electrical signals traveling down the axon

Question 27

what are terminal branches of the axon?

Answer 27

branches that form junctions with other cells

Question 28

what is myelin sheath?

Answer 28

a fatty tissue that helps speed neural impulses

Question 29

neurotransmitters are what?

Answer 29

chemical