Feedback loops
Definition- regulates and monitors internal and external functions.
why loops-Because your body will eventually run out of insulin and glucose
so somehow you would need to restore it which causes the cycle to start again.
A negative loop is a figure 8 shape and a positive loop is a spiral like figure.
What kind of chemical- secrets hormones
3 organs
·Pancreas-insulin
·Testes-testosterones
·Ovaries- estrogen
Examples
Inside- the control of keeping a steady heart
rate.
Outside- when an icebergs melts which attracts heat which causes more icebergs to melt
Positive- contraction while a women is in labor.
Negative- When glucose gets to high insulin is secreted to lower your sugar back down to normal.
Definition- regulates and monitors internal and external functions.
why loops-Because your body will eventually run out of insulin and glucose
so somehow you would need to restore it which causes the cycle to start again.
A negative loop is a figure 8 shape and a positive loop is a spiral like figure.
What kind of chemical- secrets hormones
3 organs
·Pancreas-insulin
·Testes-testosterones
·Ovaries- estrogen
Examples
Inside- the control of keeping a steady heart
rate.
Outside- when an icebergs melts which attracts heat which causes more icebergs to melt
Positive- contraction while a women is in labor.
Negative- When glucose gets to high insulin is secreted to lower your sugar back down to normal.
POSTIVE Feedback Loop NEGATIVE Feedback loop
Negative
*Continuous, happening all the time
*Maintaining homeostasis meaning same
staying
*Much more common in the body
Example 1* maintaining blood pressure around 120/80
Example 2* maintaining body temperature at 98.6
Example 3* blood sugar levels at 90-150
Example 4* excitement level maintained with adrenalin and cortisol
Example 5* fluid levels or blood volume (hunger)
Example 6* sleeping and waking cycles
Example 7* metabolism
Example 8* growth
Positive
*Temporary, short lived
Builds and builds until something big
happens
*Less likely to happen in the body
Example 1*labor—can induce with Pitocin
Example 2*orgasm
Example 3* blood clotting
*****We need both positive and negative to survive
*Continuous, happening all the time
*Maintaining homeostasis meaning same
staying
*Much more common in the body
Example 1* maintaining blood pressure around 120/80
Example 2* maintaining body temperature at 98.6
Example 3* blood sugar levels at 90-150
Example 4* excitement level maintained with adrenalin and cortisol
Example 5* fluid levels or blood volume (hunger)
Example 6* sleeping and waking cycles
Example 7* metabolism
Example 8* growth
Positive
*Temporary, short lived
Builds and builds until something big
happens
*Less likely to happen in the body
Example 1*labor—can induce with Pitocin
Example 2*orgasm
Example 3* blood clotting
*****We need both positive and negative to survive