Term
| Amounts of water based on gender, age and body composition |
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Definition
160lb man: 99lb W, 27 lb protein, 24 lb fat, 10lb mineral and glycogen
62% water, 17%protein, 15%fat, 6% minerals
boys have more lean tissue &less fat than girls |
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Term
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Definition
-resistance to temp change(heat capacity)
- cooling
- body fluids
- pH balance
- chemical rxns |
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Term
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Definition
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Term
| Intracellular vs. Extracellular fluid |
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Definition
Intracellular: 2/3 of total fluid, K+ & HPO42 are predominant electrolytes
Extracellular: 1/3 of fluid(interstital and plasma)Na+ and Cl- predominant |
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Term
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Definition
Renin:secreted by kidney in response to decreased bp
- hydrolyzes angiotension to angiotension I, then converted to angio II
Angiotension II: vasoconstrictor, increases bp & stimulates adrenal cortex to release aldosterone |
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Term
| Antidiuretic Hormone (ADH) |
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Definition
| ADH: stimulates the kidneys to reabsorb water, reducing urine |
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Term
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Definition
| alcohol & caffeine are diuretics that suppress ADH production |
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Term
| Muscle Contraction & electrolyte role |
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Definition
calcium in blood and soft tissues is important for muscle contraction
- |
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Term
| Who controls fluid intake? |
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Definition
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Term
| Minerals and effect on blood pressure |
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Definition
Na: increases bp
K+: decreases bp |
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Term
| Osmotic Pressure & Fluid Movement |
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Definition
water moves across cell memb to equalize concentrations of dissolved particles
concentration inside is higher, water goes inside to =, vice versa |
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Term
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Definition
| intracellular, stored in bone |
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Term
| Chloride & Immune Function |
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Definition
highest concentration in extrecell
- maintain body's fluid balance
- prepares proteins for enzymatic digestion
- white blood cells use Cl to form chem weapon to kill invading bacteria
- involved in nerve impulse transmission |
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Term
| Regulation of blood calcium |
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Definition
| Low Ca: PTH released,activates vitamin D, cause kidneys to retain more Ca, release Ca, Ca absorption |
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Term
| Peak Bone Density Achievement |
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Definition
-reached before age of 30
- advantageous to get high peak bone mass thru proper nutrition and exercise
- leads to stronger skeleton and protect against osteoporosis
- decrease at 40 yrs bc reabsorption exceeds new bone formation |
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Term
| Hormones involved in milk synthesis |
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Definition
Lactation:produce milk
Prolactin:hormone resp for synthesis milk,toward end of preg
Colostrum:1st milk produces
Oxytocin: hormone responsible for milk "let down",movement of milk |
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