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BIO 669- Quiz 1 Questions And Answers With Verified Solutions Already Passed!!!
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BIO 669- Quiz 1 Questions And Answers With Verified Solutions Already Passed!!!
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BIO 669- Quiz 1 Questions And AnswersWith Verified Solutions Already
Passed!!!
How much of the body's water is intracellular? - ANSWER✔✔ 2/3
How much of the body's water is extracellular? - ANSWER✔✔ 1/3
Interstitial: 75%
Intravascular: 25%
Smaller amountsL sweat, urine, transcellular
Populations susceptible to dehydration: - ANSWER✔✔ Pediatric and geriatric
Net filtration - ANSWER✔✔ forces favoring filtration minus forces opposing
filtration
Aquaporins - ANSWER✔✔ small pores in cells that allow for water transport
across plasma membrane
Solute - ANSWER✔✔ Electrolytes/proteins
Solvent - ANSWER✔✔ Water/plasms
Osmolarity - ANSWER✔✔ Concentration of osmotically active particles in solution
Osmolarity= # of particles (in solution) x concentration of particles
,hyposmotic - ANSWER✔✔ Lower osmotic pressure
hyperosmotic - ANSWER✔✔ higher osmolarity
Osmosis - ANSWER✔✔ Movement specifically of water in one direction or other
based on high concentration of H2O or low concentration of H20
Isotonic - ANSWER✔✔ 2 solutions with the same osmotic pressure
Colloid osmotic pressure - ANSWER✔✔ pressure created by protein in the blood
Reflection Coefficient - ANSWER✔✔ addresses the ability of a membrane to be
permeated by a solute on a scale of 0 to 1
0=fully permeable
1=impermeable
capillary hydrostatic pressure - ANSWER✔✔ facilitates the outward movement of
water from the capillary to the interstitial space
aka blood pressure
- A force that favors filtration
Interstitial oncotic pressure - ANSWER✔✔ osmotically attracts water from the
capillary into the interstitial space
-Favors filtration
, plasma oncotic pressure - ANSWER✔✔ osmotically attracts water from the
interstitial space into the capillary
-Water-pulling
Favors reabsorption
Interstitial hydrostatic pressure - ANSWER✔✔ facilitates the inward movement of
water from the interstitial space into the capillary
Favors reabsorption
Filtration - ANSWER✔✔ fluid movement out of the capillary and into the
interstitial space
Reabsorption - ANSWER✔✔ fluid movement into the capillary from the interstitial
space
Edema - ANSWER✔✔ Accumulation of fluid within the interstitial spaces
Papilledema - ANSWER✔✔ swelling of the optic nerve where it enters the retina
Baroreceptors - ANSWER✔✔ stretch receptors measure pressure placed on vessel
walls
What part of the brain stimulates thirst - ANSWER✔✔ hypothalamus
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