The nervous system

Question 1

Describe the function of receptors in the skin

Answer 1

Receptors are cells that can detect change in in the outside environment. This then sends signals to the coordination centre, spinal cord or pancreas.

Question 2

What are the 2 types of effector? What response do they make?

Answer 2

muscle - contracting

glands - releases hormones e.g. adrenaline or chemicals

Question 3

How does the nervous system work?

Answer 3

1. body detects change using sensory receptors
2. passed along by the electrical impulse along the special cells called sensory neurons
3. impulse travels till it reaches the central nervous system.
4. relay neurone passes information to the motor neurone.
5. motor neurone transmits the impulse to the effectors witch then contract (muscles), or secrete chemical substances (hormones and glands)