Homeostasis Flashcards
1
Q
Suitcase model
A
2
Q
Three fluid compartments
A
3
Q
Three fluid compartments with glycocalyx
A
4
Q
Fluid movement in and out of capillary showing three fluid compartments
A
5
Q
What is the glycocalyx
A
- The extracellular surface of the plasma membrane contains small amounts of carbohydrate covalently linked to some of the membrane lipids and proteins.
- These carbohydrates consist of short, branched chains of monosaccharides that extend from the cell surface into the extracellular fluid, where they form a layer known as the glycocalyx.
- These surface carbohydrates enable cells to identify and interact with each other.
6
Q
Examples of what ranges the body needs to be kept in
A
7
Q
Regulation of internal environment (feedback systems)
A
8
Q
Examples of how homeostasis occurs at many different levels within an organism
A
- Organ systems level
(drop in blood pressure causes heart to speed up and kidneys to retain fluid) - Tissue level
(stretch of smooth muscle causes that muscle to contract) - Cellular level
(overstimulation of receptors on a cell will result in a reduced response by that cell by decreasing the density or sensitivity of receptors) - Molecular level
(a drop in the level of a chemical product causes activation of the enzyme producing that product to reestablish normal levels)
9
Q
Stimulus, Receptors, Integration Centers, Effectors and Responses will vary depending on scale.
A
10
Q
Cell physiology
A
