Biopsychology

Question 1

Define nervous system

Answer 1

Consists of the central nervous system and the peripheral nervous system. Communicates using electrical signals

Question 2

What are the Nervous systems 2 main functions?

Answer 2

1. To co-ordinate working of different organs/cells
2. Collect, process and respond to info in the environment

Question 3

2 main Glands of the Endocrine system and their functions

Answer 3

THYROID GLAND- Produces a hormone (thyroxide) which secreted into bloodstream and affects any cell with a receptor for particular hormone.
PITUTARY GLAND- Located in brain, ‘master gland’. Controls and releases hormones from all endocrine cells

Question 4

Explain the process of synaptic transmission (4marks)

Answer 4

-Action potential travels down the axon of presynaptic neuron
-This triggers vesicles to move towards the presynaptic membrane and release neurotransmitters into synapse
-Neurotransmitters diffuse across synapse
-They bind with receptors in postsynaptic neuron
-Causing action potential in postsynaptic neuron

Question 5

Give one difference between the autonomic nervous system and the somatic nervous system

Answer 5

ANS is involuntary and SNS is voluntary (under conscious control)

Question 6

How does the Endocrine system work with flight or flight

Answer 6

-Fight or flight evolutionary response
-Controlled by our ANS (sympathetic state)
-Adrenaline is hormone and neuron transmitter main hormone involved