Brainscape's Knowledge GenomeTM

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


See full index

Year 2 - Biopsychology > The Nervous System > Flashcards

The Nervous System Flashcards

1
Q

What is the nervous system?

A

-the primary internal communication system

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

2 functions of the nervous system

A
  1. Co-ordinate organs and cells
  2. Collect, process + respond to information
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

2 subsystems of the CNS

A

CNS + PNS

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

What is the CNS made up of?

A

-brain + spinal cord

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

What is the PNS made up of?

A

-nerves - relays messages from environment to CNS

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

Subdivision of the PNS

A

ANS + SNS

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

What is the ANS?

A

-governs vital functions

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

What is the SNS?

A

-governs muscle movements, receive info from sensory receptors

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

Divisions of the ANS

A

-sympathetic + parasympathetic

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

How do the PS and S work together?

A

-antagonistic pairs

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

What is the sympathetic NS?

A

-Fight or flight

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

What is the parasympathetic NS?

A

-Rest + digest

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

What is a neurone?

A

-nerve cells that process + transmit messages through electric + chemical signal

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

What is a sensory neurone?

A

-carry messages from PNS to CNS

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

What is a relay neurone?

A

-connect sensory to motor and other relay

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

What is a motor neurone?

A

-connect CNS to effectors

17
Q

What is the charge of a resting neurone?

A

-negative

18
Q

What is the charge of an activated neurone?

A

-positive activated by stimulus - action potential - impulse travels down

19
Q

What is synaptic transmission?

A

-neurones communicating in groups

20
Q

Method of synaptic transmission

A
  1. Action potential arrives at membrane of presynaptic neurone = depolarisation
  2. Increased conc of calcium causes vesicles to move to membrane and release neurotransmitters into synapse
  3. NT diffuses across cleft and binds to receptor on surface of PST neurone
  4. Transmitted along axon or reuptaken
21
Q

What is excitation?

A

-NT increase PD across PST membrane
-triggers opening of more Na channels

22
Q

What is inhibition?

A

-reduces PD across PST membrane through closure of Na channels

23
Q

What is summation?

A

-whether a NT fires or not

Year 2 - Biopsychology (8 decks)

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