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A-Level Psychology > Biopsychology - Lesson 1 > Flashcards

Biopsychology - Lesson 1 Flashcards

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1
Q

The CNS consists of…

A

The brain and spinal chord

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2
Q

What are the two main functions of the CNS?

A

Control of behaviour and the regulation of the body’s physiological processes

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3
Q

What is the brain divided into?

A

4 main areas

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4
Q

What does the cerebrum look like?

A

It has 4 lobes and is split down the middle into two hemispheres

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5
Q

What is the cerebellum responsible for?

A

Motor skills, balance and muscle coordination

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6
Q

The diencephalon contains…

A

The thalamus and hypothalamus

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7
Q

What does the thalamus regulate?

A

Consciousness, sleep and alertness

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8
Q

What does the brain stem regulate?

A

Breathing and heart rate

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9
Q

What is the spinal chord and it’s function?

A

An extension of the brain that relays messages between the brain and the rest of the body

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10
Q

The PNS consists of…

A

The nervous system throughout the rest of the body

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11
Q

What is a neuron?

A

A nerve cell

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12
Q

What does the PNS do?

A

It transmits messages via neurons to and from the CNS

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13
Q

How many divisions does the PNS have and what are they?

A

It has 2 divisions:
• Somatic nervous system
• Autonomic nervous system

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14
Q

What does the ANS (Autonomic Nervous System) do?

A

Controls smooth muscles and internal organs and glands of the body

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15
Q

What is the ANS controlled by?

A

The brain stem

It is involuntary

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16
Q

The ANS involves…

A

Motor pathways only

17
Q

Why is the ANS automatic and unconscious?

A

It regulates itself and is responsible for digestion, heart rate and breathing

18
Q

What are the 2 divisions of the ANS?

A

‘Sympathetic Nervous System’ and the ‘Parasympathetic Nervous System’

19
Q

The Sympathetic Nervous System is activated when…

A

…a person is stressed

20
Q

What happens when a person is stressed?

A
  • Heart rate and breathing increases
  • Digestion stops
  • Salivation reduces
  • Pupils dilate • Flow of blood is diverted away from the skin’s surface

• Fight or flight response activated

21
Q

The Parasympathetic Nervous System is activated when…

A

…a person is relaxing and therefore conserving energy

22
Q

What happens when the body is relaxing?

A
  • Heart rate and breathing reduce
  • Digestion starts
  • Salivation increases
  • Pupils constrict
23
Q

What does the hypothalamus regulate?

A

Body temperature, stress response and hunger and thirst

24
Q

What does the somatic nervous system control?

A

Voluntary movements and skeletal muscles

25
Q

What is the somatic nervous system controlled by?

A

The motor cortex

It is under conscious control

26
Q

What pathways does the somatic nervous system have?

A

Sensory AND motor pathways

A-Level Psychology (17 decks)

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