The Nervous System Flashcards

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1
Q

What does biopsychology use to explain behaviour?

A

Uses biology to explain behaviour

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2
Q

What does the nervous system allow you to do?

A

Respond to changes in your environment

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3
Q

What do receptors do?

A

Detect stimuli

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4
Q

WhAt do effectors do?

A

Bring about response to a stimulus

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5
Q

How do receptors communicate with effectors?

A

Via the nervous system or endocrine system

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6
Q

What is the nervous system split into?

A

Central nervous system and the peripherial nervous system

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7
Q

What is the CNS made up of?

A

Made up of brain and spinal chord

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8
Q

What is the pns made up of?

A

The neurons that connect the CNS to the rest of the body

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9
Q

What is the pheripheral nervous system split into?

A

The autonomic nervous system and the somatic nervous system

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10
Q

What does the autonomic nervous system do?

A

Controls unconscious activities e.g digestion

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11
Q

What does the somatic nervous system do?

A

Controls conscious activities such as walking

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12
Q

What is the autonomic nervous system split unto?

A

The sympathetic nervous system and the parasympathetic nervous system

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13
Q

What does the sympathetic nervous system do?

A

Gets the body ready for action. Fight or flight

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14
Q

What does the parasympathetic do?

A

Calms the body. It is the rest and digest system

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15
Q

What are the cells of the nervous system called?

A

Neurons

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16
Q

What do neurons transmit information as?

A

Electrical impulses around the body

17
Q

How are electrical impulses sent around the body?

A
  1. cell body has dendrites that receive info from other neurons
  2. Info passes along axon that ends up at synaptic knob.
  3. there is a small gap before the next neuron called a synapse
  4. Neurotransmitters are chemicals that are released form the synaptic knob
18
Q

What are sensory neurons?

A

Nerve cells that transmit electrical impulses from receptors to CNS

19
Q

What is the relay neuron?

A

Nerve cells that transmit electrical impulses between sensory and Mortor neurons

20
Q

What are motor neurons?

A

Nerve cells that transmit electrical impulses from CNS to effectors

21
Q

What do reflexes prevent?

A

Injury

22
Q

What is the transmission of information to and from the CNS

A
Stimulus 
Receptors 
CNS
Effectors 
Stimulus
23
Q

What are reflexes?

A

Reflexes are fast automatic responses to certain stimuli

24
Q

Nervous system diagram

A

Nervous system

CNS. PNS

                      ANS.        SNS

         SNS.               PSNS
25
Q

What can nuerotransmitters be?

A

Excitatory or inhibitory

26
Q

What are excitatory nuerotransmitters?

A

Increase the likelihood that an electrical impulse will be triggered in the post synaptic neuron

27
Q

What are inhibitory neurotransmitters?

A

Decrease the likelihood that an electrical impulse will be triggered in the post synaptic neuron