Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

HH Biology Unit 3 > 3.1 - 3.4 > Flashcards

3.1 - 3.4 Flashcards

(57 cards)

Start Studying
1
Q

What is the nervous system made up of?

A

CNS & PNS

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

What is the CNS made up of?

A

the brain & the spinal chord

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

What is the PNS made up of?

A

the peripheral nerves

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

What does the nervous system do?

A

analyses sensory information, stores some aspects and makes decisions, makes motor responses by initiating muscular contractions or glandular secretions.

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

What is the function of the brain?

A

Processing information

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

What is the function of the spinal cord?

A

Connects the brain with the PNS

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

What is the function of the peripheral nerves?

A

carries information to and from all parts of the body

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

What can the PNS be split into?

A

The somatic system and the autonomic system

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

what is the somatic nervous system made up of?

A

Sensory and motor neurons

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

What does the sensory and motor neurons control?

A

The voluntary movement of skeletal muscles and involuntary impulses during reflex actions

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

What does sensory neurons do with impulses?

A

Take them from the sense organs to the CNS

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

What does motor neurons do with impulses?

A

Takes and pulses from the CNS to muscles and glands

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

What is the autonomic nervous system made up of?

A

The sympathetic system and the parasympathetic system

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

What does the ANS do?

A

Regulates the bodies internal environment

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

What are the sympathetic and parasympathetic system said to be?

A

Antagonistic to one another

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

What does antagonistic to one another mean?

A

they have opposite effects

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Sympathetic fibres act as what?

A

Accelerators, to prepare the body for action

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Parasympathetic fibres act as what?

A

Breaks, to allow the body to rest

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What does the sympathetic system do to heart rate, breathing rate, peristalsis and intestinal secretions?

A

Increases heart rate and breathing rate & decreases peristalsis and intestinal secretions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

what does the parasympathetic system due to the heart rate, breathing rate, peristalsis, and intestinal secretions?

A

Decreases heart rate and breathing rate, increases peristalsis and intestinal secretions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

name, the three types of neural pathways

A

Converging, diverging and reverberating

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

name the three parts of the brain

A

The central core, the limbic system, the cerebral cortex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

what is a central core made up of?

Study These Flashcards
A

The medulla and the cerebellum

24
Q

What does the cerebral cortex do?

Study These Flashcards
A

It is the centre of conscious thought, and recalls, memories and alters behaviour in light of experience

25
What is the purpose of this sensory areas?
Receives impulses from the bodies receptors and send them to the association areas
26
what do the association areas do?
Analyse and interpret impulses
27
What does the motor areas do?
Receive information from association areas and send impulses to effectors to bring a response
28
What is the cerebrum of the brain made up of?
The left and right hemisphere
29
what does the left cerebral hemisphere deal with?
Information from the visual field and controls are right side of the body
30
What does the right cerebral hemisphere deal with?
Information from the left visual field and controls the left side of the body
31
What is the purpose of the corpus callosum?
Transfers information between the two hemispheres
32
What does memory do?
It encodes, stores, retains and retrieves information when required
33
What is the purpose of selective memory?
To stop the brain from becoming cluttered with useless information
34
What is encoding?
The conversion of one or more nerve and pulses into a form that can be stored and retrieved later
35
What is memory storage?
Retains the information over a period of time
36
What is retention?
The ability to recall or recognise what has been learned or experience
37
What is retrieval?
Recovery of the stored material from either the short-term or long-term memory
38
what are the three levels of memory?
Information passes through the sensory memory if selected then enters the short-term memory then either transferred to the long-term memory or discarded
39
what is sensory memory?
Retains all the visual and auditory input received for a few seconds
40
State four facts about the short term memory
•Information that enters. The short-term memory is visual auditory images. •It has a limited capacity (7 items) •Holds information for a short period of time (30 secs) •Either transfer to long-term memory or lost by displacement or by decay
41
what is the serial position effect?
The primary effect and the recency effect
42
what is the primary effect?
When most items are remembered at the start of the sequence due to the rehearsal
43
what is the recency affect?
when most items are remembered at the end of the sequence, due to displacement or decay of the earlier objects
44
what is Chunking?
When you group items together to make a single item, this improves the short-term memory span
45
State 2 facts of the long-term memory
•It has an unlimited capacity •Holds information for a long time
46
what are the three things to successfully include information from the short-term memory to the long-term memory?
Rehearsal, organisation & elaboration
47
what is rehearsal?
Revisiting the information repeatedly Regarded as a shallow form of encoding
48
What is organisation?
Organising the information into logical categories
49
what is elaboration?
Analysing the meaning of the item to be memorised Regarded as an enhanced form of encoding
50
what are contextual cues?
an aid for retrieval of information They relate to the time and place when the information was initially encoded
51
Which direction do dendrites carry electrical impulses?
Towards the cell body
52
Which direction do axons carry electrical impulses?
away from the cell body (A xon = A way)
53
What are the purpose of myelin sheath?
Increases the speed of the electrical impulse conduction
54
what is myelination?
The development of myelin sheaths by glial sales
55
what are synapses?
The tiny space between the axon ending of one neuron and attend rate of the next neuron called the synaptic cleft
56
what is the neuron before the synaptic cleft known as?
presynaptic neuron
57
What is the neuron after the synaptic cleft known as?
postsynaptic neuron

HH Biology Unit 3 (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions