Homeostatis

Question 1

What DOES homeostasis mean?

Answer 1

Homeo- same
Stasis- staying

Question 2

What IS homeostasis?

Answer 2

The process of the body maintaining a stable internal environment.

Question 3

Negative Feedback loop

Answer 3

Negative feedback loop occurs when the body tries to reverse a condition its experiencing.

The loop is: body is in homeostasis—> variable throws body out of balance—> body counteracts in response—> body returns to homeostasis

Ex. Body is hot —> sweat is produced —> you cool down

Question 4

Positive feedback

Answer 4

The body increases the variable its experience

Ex. Giving birth–>contractions become more frequent–>pushes baby out of canal

Question 5

Hyperglycemia

Answer 5

Lots of glucose in the blood

Stimulus: blood glucose levels increase
Counter response: The pancreas releases insulin to open up cells. Cells take up glucose and use it as energy
Result: blood glucose levels decline, and body returns to homeostasis

Question 6

Hypoglycemia

Answer 6

Low levels of glucose in the body.

Stimulus: low blood glucose levels
Counter response: Alpha cells in the pancreas release glucagon–>liver breaks down glucagon and released glucose
Result: blood glucose levels increase