Exam 6 ch 20 electrolytes fluids

How is the body affected by too much acid?

rapid breathing, depresses the nervous system, pain…leading to coma or death

How is the body affected by too basic of a pH?

Slow breathing, overexcited nervous system, muscle cramps, leading to coma.

factors that raise/lower pH in body

Kidney malfunction, metabolic byproducts, the rate and ease of breathing

function of buffers

Chemicals in the bloodstream that absorbs small changes in blood pH, preventing drastic changes

Where is the thirst center

hypothalamus

Intracellular Fluid

67%

only cytosol

Extracellular Fluid

33%

Perilymph, cerebrospinal fluid, and serous fluid

what controls level of H+ and Bicarbonate ions in the blood?

Kidneys, by excreting or retaining them based off of pH levels

Aldosterone

• Triggers the reabsorption of Na+ ions in the kidneys

• Increases reabsorption of water into the blood - increasing blood volume/pressure

• decreases urination

Osmosis

Water moving from low to high solute concentration

Plasma has a ____ concentration of protein anions then interstitial fluid bc _____

• Higher

• they are too large to fit through the gaps in between cells

Difference between aldosterone and ADH

both decrease urination

but ADH increases absorption of water while

Aldosterone increases absorption of Na+

ADH

aka vasopressin

Hormone that inserts aquaporin channels in collecting ducts

increases reabsorption of water

decreases urination