Name _______________________
Period _______
Homeostasis & Feedback Worksheet
1. Explain homeostasis for the following conditions:
A. Body too hot:
______________________________________________
______________________________________________
B. Body too cold:
______________________________________________
______________________________________________
C. Blood Pressure too high:
______________________________________________
______________________________________________
D. Blood Pressure too low:
______________________________________________
______________________________________________
2. Define positive feedback:
__________________________________________________
__________________________________________________
3. Give an example of positive feedback:
__________________________________________________
__________________________________________________
4. During lactation, the suckling by the baby stimulates the
production of oxytocin, which in turn causes contraction of
smooth muscles surrounding the milk duct, causing milk to flow.
The flow of milk increases the suckling by the baby and more
oxytocin is produced.
A. Identify the feedback system described above.
______________________________________________
B. What would end the feedback loop?
_______________________________________________
_______________________________________________