Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

PSYCH > Biopsychology (EXAM 3) > Flashcards

Biopsychology (EXAM 3) Flashcards

You may prefer our related Brainscape-certified flashcards:
GRE® Psychology flashcards Psychology 101 flashcards
1
Q

Neuron

A

Cell in Nervous system that receives, integrates, and transmits information

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Soma Cell body

A

Neuron nucleus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Dendrites

A

Received messages from postsynaptic neuron

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Axon

A

Transmits signals through neuron via action potential

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Axon terminal (terminal buttons)

A

Passes signals to next neuron’s dendrites
Carries NT that goes into synaptic cleft and binds to receptors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Myelin Sheath

A

Insulating material that coats axons and speeds signaling transmission by hastening AP

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Action Potential

A

Brief electrical charge that travels down axon
When AP reaches terminal, triggers the release of NT into synaptic cleft
NT reaches dendrite of postsynaptic neuron and binds to selective receptors
If the postsynaptic neuron reaches AP threshold, fires
If the postsynaptic neuron doesn’t reach AP threshold, doesn’t fire

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

All or nothing principle

A

AP threshold of membrane potential MUST be met for signal to fire down axon. If it doesn’t it will not fire

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Electrochemicals

A

AP, NT

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Receptors

A

Specialized for specific NT (Like lock and key)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Reuptake

A

Reabsorbing unused NT in synaptic cleft

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Agonist

A

Artificial NT
Chemical that mimics the actions of NT and tricks brain into thinking there are more NT released
delays reuptake so that more NT can bind to receptors
i.e. opioids and endorphines

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Antagonist

A

Chemical that works against NT
blocks receptors
stops presynaptic neuron from releasing NT
i.e. Botox

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Glial cells

A

White matter (glial)
Gray matter (neuron)
Support cells in NS
Support and nourish neurons
gets rid of waste (reuptake
Makes up myelin sheath

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Nervous system divides into 2:

A

CNS
PNS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

CNS divides into two:

A

Brain and Spinal cord

17
Q

PNS divides into two:

A

Somatic nervous system
Automatic nervous system

18
Q

Somatic nervous system

A

Nerves that connect to voluntary skeletal muscles and sensory receptors
afferent: brings signals in from outside stimuli
efferent: brings brain signals out for muscles to act

19
Q

Automatic Nervous system

A

Nerves that connect to heart, blood vessels, organs, glands
Not voluntarily/consciously moved

20
Q

Automatic nervous system divides into 2:

A

Sympathetic nervous system
Parasympathetic nervous system

21
Q

Sympathetic nervous system

A

Fight/flight response
mobilizes body’s resources for emergencies, sympathetic to the stresses and helps body get over that stress

22
Q

Parasympathetic nervous system

A

Calms body back to rest after the sympathetic nervous system

PSYCH (13 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions