PSYCHOLOGY REVSISON

Question 1

What are the 2 main divisions of the nervous system ?

Answer 1

Central Nervous system - Made up of your brain and spinal cord

Peripheral Nervous System- nerves that send messages to and from CNS to other parts of the body

Question 2

What are the 2 divisions of the peripheral nervous system

Answer 2

Somatic - for voluntary responses

Autonomic- Involuntary control of automatic processes.

Question 3

What can the autonomic nervous system be divided into

Answer 3

Sympathetic -Fight flight freeze response
Parasympathetic- rest and digest

Question 4

What are sensory neurones

Answer 4

sensory neurones carry signals to your brain to help you touch,tase,smell,see

Question 5

what are motor neurones

Answer 5

carries signals to your muscles or glands to help you move and function

Question 6

4 different types of receptors

Answer 6

mechanoreceptors- hearing
Photoreceptors- Sight
Thermoreceptors- temperature
Chemoreceptors- smell and taste

Question 7

axon

Answer 7

carries information away from the cell body to their ends.

Question 8

Outline the steps involved in a stimulus passing through a synapse

Answer 8

1. Electrical reaches axon terminal
2. Vesicles containing NT move to the end of the nerve cell and
   release NT into the synapse.
3. NT diffuses across the synapse.
4. NT binds to receptors on the post
   synaptic nerve triggering
   an electrical signal