Term
| • Majority of bodyweight is |
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Definition
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Term
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Definition
o Feces and expiration (15%)
o Insensible perspiration (30%)
o Urine (55%) |
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Term
| Sources of Water Percentages |
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Definition
o Beverages (typically, 70-80%)
o Food (up to 30%)
o “metabolic water” (5-10%) |
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Term
| Two Components of Water Storage with percentages |
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Definition
Intracellular fluid (65%)
Extracellular fluid (35%)
Interstitial fluid (80% of ECF)
Plasma (20% of ECF) |
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Term
| content in muscle helps bind water to tissue |
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Definition
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Term
| primary variable monitored by regulatory mechanisms |
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Definition
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Term
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Definition
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Term
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Definition
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Term
| Represents a condition in which the body retains excess body fluids. |
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Definition
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Term
Regulation of Water Levels in Kidneys...
o Increases in osmolality stimulates .........???? |
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Definition
| pituitary to release ADH, which results in increased water resorption by kidneys |
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Term
Measure of solute in urine
Normal – 1.002 – 1.028 |
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Definition
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Term
| Deeply-colored urine indicative of _________. |
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Definition
Hypohydration
B-vitamins can also dramatically influence urine coloration |
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Term
| 4 Major Functions of Water |
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Definition
o Aqueous environment for cell chemistry
o Protection
o Transport
o Temperature regulation |
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Term
| 4 Major Benefits of Water for Hydration and Health |
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Definition
o Dilution of toxins
o Reduced production of kidney stones
o Reductions in asthma
o Oral health |
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Term
| Electrolytes are substances that can transmit a(n) _______________ in solution |
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Definition
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Term
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Definition
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Term
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Definition
Action potential
Fluid balance
Elements of other important substances |
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Term
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Definition
Contributes to membrane potentials
Fluid balance |
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Term
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Definition
Propogation of action potential
Repolarization
Key regulatory role in myocardial contraction
o Regulated via aldosterone
Increased K increased aldosterone production increased K excretion |
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Term
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Definition
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Term
| 4 Major Controls of Dissipation Temperature |
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Definition
Conduction
Convection
Radiation
Evaporation |
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Term
| responsible for modulating heat dissipation mechanisms |
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Definition
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Term
| responsible for modulating heat production mechanisms |
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Definition
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Term
| are monitored for indications of temperature |
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Definition
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Term
| Three mechanisms to decrease Core Temperature |
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Definition
Steering of blood flow (into core)
Shivering
Non-shivering thermogenesis |
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Term
i.e., submersion in very cold water
Too much convection |
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Definition
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Term
i.e., heat illness
Too little dissipation |
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Definition
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Term
| o WBGT quantifies combined effect of _________, _____________, and ___________ on capacity for heat dissipation |
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Definition
Air Temperature
Relative Humidity
Air Movement
Radiation |
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Term
| o Heat index influenced by _____________ and humidity |
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Definition
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Term
| Specific heat of human body is |
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Definition
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Term
| Human metabolism is approx. |
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Definition
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Term
| Sweat Rate can be monitored by |
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Definition
| carefully monitoring fluid intake and urine losses, as well as change in body weight |
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Term
Sweat Rate
1 Liter of weight - |
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Definition
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Term
| Often the result of combination of high sweat rates and consumption of hypotonic water |
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Definition
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