Homeostatis Flashcards
1
Q
Define homeostasis
A
the maintenance of a constant internal environment
2
Q
What is internal environment
A
the environment in which cells are found and is thus defined as the fluid inside the body, but outside of cells
3
Q
What is external enviorment
A
Everything outside the body
4
Q
A
5
Q
A
5
Q
why does internal environment need to remain constant
A
-Body temp
-Water potential
-Blood sugar concentration
5
Q
What are cells in the blood surrounded by?
A
Plasma
6
Q
other cells are surrounded by?
A
tissue fluid
7
Q
Where are the changed condition information going to?
A
brain from sensory receptors
8
Q
Definition of Negative Feedback
A
A mechanism that detetcs a change from the set point… and triggers a response that brings the level back to its set point..
