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Psychology A level > Biopsychology > Flashcards

Biopsychology Flashcards

1
Q

What are the 2 functions of the nervous system?

A
  1. to collect, process and respond to info in the environment
  2. to co-ordinate the working of different organs and cells in the body
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2
Q

What are the 2 parts of the nervous system broken down into?

A

the central nervous system and the peripheral nervous system

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3
Q

What does the CNS comprimise of?

A

the brain and spinal cord

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4
Q

What is the role of the spinal cord?

A

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

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5
Q

What is the role of the CNS?

A

processes, interprets and stores info and issues orders to muscles, glands and organs

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6
Q

What are the 2 parts the PNS is divided into?

A

somatic nervous system and autonomic nervous system

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7
Q

What is the role of the peripheral nervous system?

A

transmits messages via neurons to and from the CNS

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8
Q

What is the role of the autonomic nervous system?

A

governs vital functions in the body like breathing and heart rate, digestion, sexual arousal and stress response

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9
Q

What organs are controlled by the ANS?

A

heart
lungs
eyes
stomach
blood vessels

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10
Q

What are the 2 parts of the ANS?

A

sympathetic nervous system and parasympathetic nervous system

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11
Q

What is the somatic nervous systems role?

A

consists of nerves carrying sensory signals from all over the body (sense organs) to the CNS
it controls muscle movement and recieves info from sensory receptors

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12
Q

What is the role of the sympathic nervous system?

A

activates physiological arousal and prepares the body for fight/flight to cope with stress

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13
Q

What are examples of physiological changes from the SNS?

A

increase blood pressure
increases breathing rate
increase heart rate
pupils dilate
inhibition of saliva production and digestion

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14
Q

What is the role of the parasympathetic nervous system?

A

activates rest and digest response to bring the body back to its resting state after stress has passed

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15
Q

What are examples of the physicological changes from the PSNS?

A

decrease heart rate
decrease blood pressure
decrease breathing rate
pupils contrict
stimulates digestion

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16
Q

What is the role of neurons?

A

Transmit nerve impulses and signals chemically and electrically to allow communication in the nervous system

17
Q

What do dendrites do?

A

Carry nerve impulses to the cell body

18
Q

What does the axon do?

A

Carries away nerve impulses away from the cell body down the length of the neuron

19
Q

What is the myelin sheath?

A

Psychology A level (7 decks)

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