Ch. 26 Body fluids Flashcards
infants are ___% or more water
73%
Infants have high or low body fat and bone mass?
Infants have low body fat and low bone mass
Adult males are ___% water and females are around ____% water
60% and 50%
Adult females have a _____ fat content but _____ skeletal muscle mass
higher fat content, less skeletal muscle
Which tissue is the least hydrated of all?
Adipose
What is the total body water in the average adult?
around 40 Liters
Water declines to around ____% in old age
45%
What are the two main fluid compartments?
Intracellular and extracellular
Fluid inside the ____ compartment accounts for 2/3 of total body fluid
ICF
Fluid inside the two main ____ compartments outside cells accounts for 1/3 of total body fluid
ECF
What are the two compartments within the ECF?
Plasma and interstitial fluid
There are __L of fluid in the plasma and ___L in the interstitial fluid
3L and 12L
There are 12L of _____ ______ in spaces between cells
interstitial fluid
What else is considered interstitial fluid?
Lymph, CSF, humors of the eye, synovial fluid, serous fluid, and gastrointestinal secretions
What is the universal solvent?
Water
_____ are substances dissolved in water
solutes
Solutes are classified as ______ and _____
nonelectrolytes and electrolytes
________ are considered most organic molecules and they do not dissociate in waer
Nonelectrolytes
What are some examples of nonelectrolytes?
Glucose, lipids, creatinine, and urea
______ dissociate into ions in water
electrolytes
What are some examples of electrolytes?
Inorganic salts, all acids and bases, some proteins
Do ions conduct an electrical current?
Yes
______ have greater osmotic power than ________
electrolytes have greater osmotic power than nonelectrolytes
______ have the greater ability to cause fluid shifts due to the ability to dissociate into two or more ions
Electrolytes
