NEGATIVE FEEDBACK

Question 1

WHAT IS THE NEGATIVE FEEDBACK

Answer 1

• A negative feedback is when a variable triggers a counter response that has the effect of reducing or eliminating the stimulus that caused it, in order to keep the body’s regular temperature.
• Thermoregulation - Stimulus > Sensor > Control > Effector

Question 2

HIGH TEMPERATURE

Answer 2

When there is a high temperature (Hot):
- Sweat is released from the sweat glands
- Hairs lay flat
- Vasodilation to lose heat

Question 3

LOW TEMPERATURE

Answer 3

When there is a low temperature (Cold):
- Shivering due to muscle contraction for heat
- Hair stand up
- Vasoconstriction to keep the heat in.