Co-ordination Glossary

?
Stimulus
A change in an organism's enviroment
1 of 13
Receptor
Detects the stimulus (e.g. rod and cone cells are found in the retina and detects light)
2 of 13
Co-ordinator
Brain and spinal chord make up the central nervous system (CNS)
3 of 13
Effector
A muscle or a gland that brings about a response (to promote survival and prevent harm)
4 of 13
Sensory Neurone
Neurone that takes the electrical impulse from the affected area to the relay neurone
5 of 13
Relay Neurone
Takes the new impulse from the Sensory Neurone to the Motor Neurone.
6 of 13
Motor Neurone
Takes the impulse from the CNS to the Effector.
7 of 13
Myelin Sheath
Fatty layer surrounding the axon. It insulates the impulse and prevents message from going anywhere else. This makes the impulse fast.
8 of 13
Synapse
The synapse is the gap between two nerve endings.
9 of 13
Neurotransmitters
They are chemicals that diffuse across the synapse as the electrical impulses (ions) can't. The neurotransmitters bind with a receptor on the next neurone sparking a new electrical impulse.
10 of 13
Function of the nervous system
To transmit accurate information from one part of the body to another.
11 of 13
Purpose of a knee jerk
To adjust tension in our muscle to maintain/regain balance.
12 of 13
Homeostasis
The maintenance of a constant/internal environment.
13 of 13

Other cards in this set

Card 2

Front

Detects the stimulus (e.g. rod and cone cells are found in the retina and detects light)

Back

Receptor

Card 3

Front

Brain and spinal chord make up the central nervous system (CNS)

Back

Preview of the back of card 3

Card 4

Front

A muscle or a gland that brings about a response (to promote survival and prevent harm)

Back

Preview of the back of card 4

Card 5

Front

Neurone that takes the electrical impulse from the affected area to the relay neurone

Back

Preview of the back of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Co-ordination resources »