Nervous System And Reflex Arc

Question 0

What does the receptor do?

Answer 0

Organ which detects the change

Question 1

What is the stimulus?

Answer 1

Change in surroundings

Question 2

What role does the effector play?

Answer 2

Muscles - contract

Question 3

What is the central nervous system made up of?

Answer 3

Brian and spinal chord

Question 4

What are nerve cells called?

Answer 4

Neurones

Question 5

What order do impulses go in?

Answer 5

Stimulus 
Receptor 
Sensory neurone
Brain 
Effectors
Motor neurone 
Relay neurone  
Response 
SRSBEMRS

Question 6

What does the long axon allow?

Answer 6

Allows an impulse to be carried over a long distance from CNS to muscle

Question 7

What is at the end of the axon?

Answer 7

Branches which make contact with muscle fibres

Question 8

What do dendrites do?

Answer 8

Allow each neurone to be connected to many other neurones

Question 9

What is a reflex action?

Answer 9

Rapid automatic response to a stimulus eg bright light, pupil smaller