Term
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Definition
female-55% fluids, 45% solids
males-60% fluids, 40% solids |
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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
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Definition
| movement of fluid beteen divisions |
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Term
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Definition
| between interstitial and intracellular |
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Term
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Definition
| btw plasma and interstitial |
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Term
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Definition
plasma membranes-seperate intracellular from interstitial
BVs sepereate interstitial fluid from plasma
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Term
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Definition
- component
- preformed=ingested water
- food (700 ml) or drin 1600 ml
- total 2300 ml/day
metabolic
- components
- water produced during aerobic respiration (electron transport)
- total 2500 ml
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Term
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Definition
- urination (kidneys)= 1500 ml
- skin evaporation/sweat=600 ml
- defecation-GI tract=100 ml
- exhalation=300 ml
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Term
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Definition
dissolved minerals
functions: control osmosis; regulate pH |
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Term
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Definition
| negatively charged electrolytes (Cl-) |
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Term
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Definition
| positively charged electrlytes (Na-,H+) |
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Term
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Definition
movement of water
intracellular and interstitial fluids-osmolarity has to be equal to prevent shrinking or swelling of cells
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Definition
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Term
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Definition
| cause cells to swell bc gain water |
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Term
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Definition
| causes cells to shrink due to water loss |
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Term
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Definition
increases losses via urination, perspiration etc
generates dehydration
response of body |
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Term
| regulationof electrolytes |
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Definition
via hormonal secretion
inkidneys-regulate amount loss in urine |
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Term
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Definition
| causes increased levels of Na+, Cl-, & Mg2+ in body fluids and decreased levels of K+ |
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Term
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Definition
| increase reabsorption of Na+, Cl-. and H20 (decrease urine loss) |
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Term
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Definition
| increase urine execretion of Na+, Cl- (&H2O) - decrease BV |
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Term
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Definition
| hormones regulate storage/release of electrolytes |
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Term
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Definition
| storage of Ca2+ and PO-2 in bones and teeth |
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Term
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Definition
| release of Ca2+ and PO-2 from bones and teeth |
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Term
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Definition
scale from 0-14
based on relative amt of H+ and OH- present
pH <7=acidic fluid; H>OH-
pH>7=basic fluid; OH->H+
pH=7=neutral fluid; H+=OH- |
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Term
| mechanisms of pH regulation |
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Definition
- buffer systems
- protein buffer
- hemoglobin/oxyhemoglobin buffer
- respiration
- tubular secretion
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Term
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Definition
| convert strong acids or bases to waek ones |
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Term
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Definition
- if decrease pH-excess H+ picked up by amine (NH2) group
- if increase pH-carboxyl group (COOH) releases H+
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Term
| hemoglobin/oxyhemoglobin buffer |
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Definition
- CO2 in blood from carbonic acid (H2CO2) which releases H+
- ? pH-decreases
- hemoglobin releases O2 becomes negatively charged (Hb) & binds w/ free H+ (HbH)
- ? pH- increases
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Term
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Definition
- regulate amt of carbonic acid in blood
- decreses pH leads to
- increases respiration rate
- elinates CO2 &thus, carbonic acid from blood
- increases pH leads to
- decreases respiration rate
- allows build up of CO2 & thus, carbonic acid in blood
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Term
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Definition
- kidneys
- decrease pH leads to
- increase tubular secretion of H+ into urine
- less H+ in blood raises pH
- increase pH leads to
- decrease tubular secretion of H+ into urine
- more H+ in blood lowers pH
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Term
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Definition
pH imbalance
- sustained decrease in pH
- depresses activity of nervous system
- causes:
- respiratory-due to
- metabolic-due to:
- sustained increased in metabolic rate
- kidney failure
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Term
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Definition
pH imbalance
- sustained increase in pH
- hyperstimulation of nervous syst.
- causes:
- respiratory-due to
- metabolic-due to
- vomiting (loss of acidic gastric juice)
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Term
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Definition
attempt to correct pH imbalance
- kidneys (via tubular scretion) can compensate for respiratory - based imbalances
- respiration can compensate for metabolic based imbalances
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