Stimulus Response Pathways

Question 1

What is the first step in the stimulus-response pathway?

Answer 1

Receptors stimulate sensory nerves.

Question 2

What happens after sensory nerves are stimulated?

Answer 2

Sensory nerves send a message to the brain.

Question 3

What does the brain do in the stimulus-response pathway?

Answer 3

The brain works out a response and sends a message along motor nerves.

Question 4

What is the role of motor nerves in the stimulus-response pathway?

Answer 4

Motor nerves stimulate effectors (muscles and glands).

Question 5

What is a reflex action?

Answer 5

Reflex action is a sudden and involuntary response to stimuli.

Question 6

What is required to write a stimulus-response pathway?

Answer 6

You need to diagram the specific reflex involved.

Question 7

Describe the stimulus response pathway.

Answer 7

1. Receptors stimulate sensory nerves.
2. Sensory nerves send a message to the brain.
3. The brain works out a response and sends a message along motor nerves.
4. Motor nerves stimulate effectors (muscles and glands).