Question

help! just 2 questions
1) Bright light is shown into your eyes, the size of your pupil decreases, you receive a tap just below your knee cap, your leg gives a little kick.
i. In what ways are these responses similar?
ii. How are these two types of response different?

2) Using the skin as an example, explain how negative feed back mechanisms are involved in temperature control.
Thanks!

Answer 1

sorry never really covered this in biology

Answer 2

ok thanks anyways

Answer 3

Hints:

i. They both involve the nerve system, and it's a subtype of it.
ii. One of them reacts before the nerves signal reaches the brain. But which one...

2. Negative feedback in a nutshell - When something is beyond the normal range, your body reacts so that it returns to normal.

Answer 4

1 both are reflexes 1st one invoves smooth muscle called pupillary reflex and brain 2nd one involves spinal cord and voluntary muscles

Answer 5

oh ok thanks alot!!