Chapter 24 Flashcards
3 Types of homeostatic balance
water balance, electrolyte balance, acid-base balance
fluid compartment
areas separated by selectively permeable membranes and differing from each other in chemical composition
major fluid compartments
- 65% intracellular fluid
- 35% extracellular fluid which is subdivided into
- 25% tissue (interstitial) fluid
- 8% blood plasma and lymph
- 2% transcellular fluid
True or False: A newborn baby’s weight is as much as 75% water, whereas obese and elderly people’s weight is as little as 45% water.
true
Components of transcellular fluid
- bile; and fluid in the digestive, urinary, and respiratory tracts
- vitreous and aqueous humors of the eye-cerebrospinal, synovial peritoneal, pleural, and pericardial fluids
Water moves by ____ from the digestive tract to the bloodstream and it moves by _______ from the blood to the tissue fluid
osmosis; capillary filtration
determines the direction and extent of osmosis between the intracellular and extracellular compartments
solute concentrations in the various compartments
important function of electrolytes in the ECF
they control the movement of water between fluid compartments
A person is in a state of fluid balance when
gains equal losses
Preformed water
the combination of water form food and drink
transcellular fluid
a catch-all category for cerebrospinal, synovial, peritoneal, pleural, and pericardial fluids; vitreous and aqueous humors of the eye; bile; and fluid in the digestive, urinary, and respiratory tracts
means by which water moves from a fluid compartment to another
capillary filtration, passive transport, osmosis
osmosis
a form of restoration through water when the balance between the intracellular and extracellular fluid needs to be restored
electrolytes play a crucial role in governing…
the body’s water distribution and total water content
