Unit 1 Flashcards
(19 cards)
a) What are the components of ICF?
b) Where is ICF found?
a) Potassium ions, Phosphates, Proteins
b) Inside the cells
The body is made up of ___ % of water.
__/__ is ICF; and __/__ is ECF.
60%
2/3
1/3
a) What are the components of ICF?
b) Where is ICF found?
a) Sodium ions, Chloride ions, Carbonate
b) Outside the cells
Plasma accounts for ___% and interstitial fluid accounts for ___% of ECF.
20%, 80%
What is the difference between extracellular, intracellular, plasma, and interstitial fluid?
ECF denotes all body fluid found outside the cells; ICF is found inside the cells; plasma is an ECF component found in the blood vessels; IF is an ECF component found outside the blood vessels.
Cohesion
The property of like molecules (of the same substance) to stick to each other due to mutual attraction.
Adhesion
The property of different molecules or surfaces to cling to each other.
What is the polarity of water?
Polar molecule, it has an unequal sharing of electrons.
Homeostasis
A balancing of the internal environment that is achieved by regulatory mechanisms involving nerves, hormones, or localized chemicals.
Negative Feedback
Body’s response to minimize change and maintain homeostasis
How does water have temperature stabilizing effects?
Temperature of water rises and falls slower than most liquids. It protects organisms from rapid temperature changes.
What is the range of normal blood glucose levels?
70 - 110 mg/dl or mg%
Discuss the basic components of glucose homeostasis.
Sensor, input, and integrating center: in pancreas. Levels are detected and activates insulin production. Output: pancreas secretes insulin hormone. Effectors: cells and organs, activates transport of glucose into cells.
Diabetes mellitus
A lack of insulin or insulin does work on the effectors
Define the negative feedback reflex components
(Stimulus)
1. Sensor; 2. Input; 3. Integrating center/ set point; 4. Output; 5. Effector
(Response)
27 million in the US have diabetes mellitus, what is the main cause?
Obesity
Hyperglycemia
A rise in blood sugars
Discuss heat gain through metabolic and muscular heat production, radiation, and conduction in the body.
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Discuss heat loss through evaporation, radiation, and conduction in the body.
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