lesson 14 part 1 Flashcards
transport the nutrients, electrolytes, and oxygen to cells and carrying waste products away from cells
body fluids
fluid losses from the skin and lungs are referred to as _____ because they cant be seen or measured
insensible losses
fluid losses from urination, defecation, wounds, and other means are referred to as
sensible losses
how many does a typical adult loses fluid through defecation
150-200 ml/day
primary component of the body
water
an adults weights water with how many percent
50% to 60%
fluids in the body are found in three basic places:
within the cells / ICF
outside the cells / ECF
within the tissue spaces / interstitial space
substances whose molecules dissociate, or split ions, when placed in water
electrolyte
electrically charged particles
ions
help regulate water distribution, govern acid balance, and transmit nerves impulses
electrolytes
positively charged ions
cations
negatively charged ions
anions
main intracellular fluid cation
potassium
leading intracellular fluid cation
magnesium
main extracellular fluid cation
sodium
a major cation in teeth and bones
calcium
found fairly equal concentrations in ICF and ECF
calcium
main icf anion
phosphorus
main ecf anion
chloride
acts as hydrogen buffer
phosphorus
regulates ‘acid base balance’
bicarbonate
three fluid types
isotonic
hypotonic
hypertonic
a solution derived from plasma
human albumin
have large molecules that are unable to pass through semipermeable membranes
colloid solution
contain small particles that pass easily from the bloodstream to cells and tissues
crystalloid solution
this solution HAS THE SAME SOLUTE concentration
isotonic
this solution: matter dissolved in solution
isotonic
has a lower concentration than another solution
hypotonic
has a higher solution concentration than another solution
hypertonic
give an example of isotonic
normal saline solution
dextrose 5% in water
D5LR
ringer’s solution
give an example of hypertonic
3% sodium chloride
5% sodium chloride
dextrose 10% in water
normal urine output
1 to 2 liters per day
who secretes renin
kidneys
an enzyme that activates the raas (renin angiotensin aldosterone system)
renin
is also known as vasopressin
anti-diuretic hormone
produced by the hypothalamus to to reduce diuresis and increase water retention
antidiuretic hormone
this hormone, produced and stored in the atria of the heart, stops the action of the raas
ANP / atrial natriuretic peptide
thirst is regulated by _______
hypothalamus