A and P Lecture Notes Class 2 6 3 2010

A and P Lecture Notes Class 2 6 3 2010 - AJ Jajdelski A & P...

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AJ Jajdelski Class #2 6/3/2010 Homeostasis Elements found in Human organization: oxygen 65% carbon 18.5 % Hydrogen 9.5 % Nitrogen 3.2% Calcium 1.5 % Phosphorus 1.0% There are also trace elements including K .3% S .3% Na .2%, Cl .2% Mg .1% I .1% Fe .1% These trace elements together only make up about 1.3%. ***% refers to the percent make up of body weight. CAT ion - Ion with a positive charge. ANION- Ion with a negative charge. Intracellular- Inside the cell Extracellular- Outside the cell 1
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AJ Jajdelski Homeostasis - a condition in which the body’s internal environment remains within certain physiological limits. An organism is said to be in homeostasis when its internal environment: A. contains the optimum concentration of gases, nutrients, ions, and water. (If the body becomes deficit in water outside the cell, the body then takes water from the cell, leaving the cell in water deficit.) B . Has optimum temperature. C. Optimal volume for the health of the cells. ***Maintaining homeostasis results in HEALTH. Imbalance may result in disease or death. Un-facilitated transport moves on a gradient, traveling from an area of higher concentration to an area of lower concentration. Osmosis is the movement of water only.
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This note was uploaded on 11/19/2010 for the course BIO 263 taught by Professor Hurd during the Summer '10 term at Neosho CC.

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A and P Lecture Notes Class 2 6 3 2010 - AJ Jajdelski A & P...

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