Brainscape's Knowledge GenomeTM

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


See full index

Biosphycology….☹️ > the nervous system and the endocrine system > Flashcards

the nervous system and the endocrine system Flashcards

1
Q

what is the nervous system?

A

a specialised network of cells in the body

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

what type of communication is the nervous system?

A

our primary internal communication system

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

what is the nervous system based on?

A

electrical and chemical signals

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

what is the endocrine system based on?

A

hormones

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

what are the nervous systems two main functions?

A
  1. collect, process and respond to info in the environment
  2. co-ordinate the working of different organs and cells in the body
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what are the two sub-systems that the nervous system is divided into?

A
  1. central nervous system
  2. peripheral nervous system
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what is the CNS made up of?

A

the brain and spinal chord

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

what is the brain the centre of?

A

all conscious awareness

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

what is the brains outer layer?

A

the cerebral cortex

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

how thick is the brains outer layer?

A

3mm thick

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

what does the outer layer of the brain cover? where is this found?

A

the brain this is only found in mammals

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

what does the brain distinguish?

A

our higher mental functions from those of other animals

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

what is the brain divided into?

A

two hemispheres

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

what is the spinal chord?

A

an extension of the brain

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

what does the spinal chord do?

A

passes messages to and from the brain and connects nerves to the PNS

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

what is the spinal chord responsible for?

A

reflex actions

17
Q

How does the PNS transmit messages?

A

via millions of neurons to and from the central nervous system

18
Q

what is the PNS further subdivided into?

A
  1. Autonomic nervous system
  2. somatic nervous system
19
Q

what does the automimic nervous system do?

A

Controls smooth muscles and glands and is involuntary

20
Q

what does the somatic nervous system do?

A

Controls skeletal muscles and is under conscious control

21
Q

what does the endocrine system work alongside?

A

the nervous system

22
Q

what does the endocrine system control?

A

vital functions in the body

23
Q

compared to the nervous system how does the endocrine system work?

A

slower but has very widespread and powerful effects

24
Q

where are hormones secreted?

A

into the bloodstream and affect any cell in the body that has a receptor for that particular hormone

25
Q

how do most hormones effect cells?

A

in more than one body organ leading to many diverse and powerful responses

26
Q

what are the main glands in the endocrine system?

A

hypothalamus - brain
pituitary - brain
thyroid
parathyroid
adrenals
pancreas
ovaries - female
testes - male

27
Q

what is the key endocrine gland?

A

pituitary gland in the brain

28
Q

why is the pituitary gland called the master gland?

A

it controls and releases hormones from all other endocrine glands in the body

29
Q

how do the endocrine and ANS often work?

A

in parallel

30
Q

what happens when a stressor is percieved?

A

the hypothalamus activates the pituitary gland which triggers activity in the sympathetic branch of the ANS

31
Q

when a stressor is perceived what happens to the ANS?

A

it changes from its normal resting state (parasympathetic) to the physiologically aroused sympathetic state

32
Q

where is adrenaline released from?

A

the adrenal medulla

33
Q

what does adrenaline trigger?

A

physiological changes in the body which creates physiological arousal necessary for the fight or flight response

34
Q

what type of response is the release of adrenaline?

A

acute response and an automatic reaction in the body

35
Q

what happens once the threat has passed?

A

the parasympathetic nervous system returns the body to its resting state

36
Q

What does the parasympathetic branch of the ANS work in opposition to?

A

the sympathetic nervous system - actions are antagonistic to the sympathetic nervous system

Biosphycology….☹️ (8 decks)

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