Negative and Positive Effects on Stimulus
Home > Preview
The flashcards below were created by user
on FreezingBlue Flashcards.
Negative Feedback Mechanisms:
Effector acts to ______ the initial stimulus
Ex. Blood Sugar
eat 4 donuts -> blood sugar ____ ->
____ released ->
blood sugar ______ as well as the _____ level
- goes up
- goes down
Ex. Blood Pressure
Blood Pressure low -> anti diuretic hormone increases -> go to the bathroom less -> retain water-> blood level goes up -> blood pressure goes up -> ADH goes up
Most homeostatic control mechanisms are _____ feedback mechanisms which control ______, ______, _____, _____, _____, _____
- heart rate
- blood pressure
- blood oxygen levels
- carbon dioxide levels
- mineral levels
- breathing rate
Positive Feedback Mechanisms:
Effector acts to ___ the initial stimulus.
Ex. Blood Clotting
tear/break in blood vessel, exposes ______ -> ______ stick to these -> they release a chemical that attracts more of them to the damaged area -> the pileup and chemical release leads to _____
- collagen fibers
Ex. Birthing Process
Baby's head pushes on the _____ -> stimulating pressure _____ -> causes brain to release ______ -> stimulates muscles of ______ to contract -> pressure on the ______ increases -> _____ levels go up -> frequencies of contractions go up, etc. -> baby is born
When the body is not able to maintain homeostasis.
What would you like to do?
Home > Flashcards > Print Preview