Fluid, Electrolyte, pH Balance

why is water balance essential

maintain enzyme function

why is electrolyte balance essential

maintain excitable tissue function

why is pH balance essential

maintain normal chemical reactions, cells tructure, and function

how do factors balance in homeostasis

intake must equal output

how is fluid balance related to hoemostasis

movement between ECF and ICF driven by osmosis

how is electrolyte balance related to homeostais

creates osmotic gradients

how is acid-base balance related to homeostasis

hydrogen ion balance establishes normal pH

how much of body weight is water

50-60 percent

60 in males

50 in females

what are the two fluid compartments

intercellular fluid (ICF)- contains more of total body water

extracellular fluid (ECF)

what is part of intracellular fluid

contains potassium, magnesium, lots of negatively charged proteins

also exerts primarily osmotic pressure

what is part of extracellular fluid

includes sodium, chloride, bicarbonate, and nutrients. It is found in blood plasma and interstitial fluid.

how does water move

continusously

where does water move through

across capillary rndothelium

serous membranes

synovial membranes

CSF

eyehumors

how much water is lost per day

2.5 liters

lost in sensibly and sensibly

sources of gaining water

food

liquid (drinking)

metabolic water produced during catabolism

methods of eliminating water

urination

evaporation at skin

evaporation at lungs

loss in feces

what hjappend if ECF osmolarity increases

water leaves cels

what happens if ECF osmolarity decreases

water enters cells

what kind of tissue does calcium and potassium imbalance affect

cardiac muscle tissue

how is the sodium balance created

between sodium absorption from gut and excretion by kidneys