Sodium, Potassium, & Chlorine Flashcards
Na, K, Cl occur primarily where
body fluids & soft tissues
main functions of Na, K, & Cl
- maintain osmotic pressures (control passage of nutrients into cells)
- acid-base balance in blood (maintain normal pH)
- water metabolism in general (maintain normal fluid volume)
how does the body regulate levels Na, K, Cl levels
conserving them during deprivation (primarily via kidney function)
amount of NA in body
0.2%
mostly in body fluids
primary cation of ECF
Na
where does sodium occur
- bases in blood serum (makes up 93%)
2. in muscles; helps with contractions (important to generate nerve action potential)
where is sodium absorbed
mostly in small intestine
a little in the stomach
how is sodium excreted
mostly via kidneys
in skin via severe sweating
the 3 functions of sodium
- osmotic pressure regulation
- acid-base balance
- muscle contraction
a sodium deficiency causes mainly what 3 things
- decreased feed consumption
- poor growth & production
- emaciation/wasting away
animals require what percentage of Na in dietary intake
- 0.1-0.2%
2. since plants have low Na animal diets often supplemented with salt
percentage of K in body
0.2%
K occurs primarily where in the body
intracellular fluid (more in blood cells than plasma)
where is K absorbed
small intestine
K is excreted in what 2 places/ways
90% from kidneys
by sweating
