Week 11 - Water
Overview
Most abundant component of the body
Birth: 70 - 80% of body's weight
Adults: 50 - 60% of body weight
Adipose tissue contain less water than lean body mass LBM
Water
Body fluid
Intracellular fluid ICF
Extracellular fluid ECF
Osmotic pressure equalizes the solute concentration of ICF & ECF
Roles
Enable chemicals reactions to occur by entering into some reactions,
such as hydrolysis
Maintain stability of all body fluids, as the principle component &
medium for fluids (blood & lymph), secretions (saliva & GI fluids), &
excretions (urine & perspirations)
Enable transport of nutrients to cells & provide medium for excretion of
waste products
Act as lubricate between cells to permit movement without friction
Regulate body temperature by evaporating as perspiration from skin &
vapor from mouth & nose
Requirements
Men = 3.7L 15 - 16 cups/day)
Women = 2.7L 1112 cups)/day
Week 11 - Water 1
, Water is lost through
Urination
Perspiration
Expriration
Defecation
Sources of water
Plain tap water
Others: soft drinks, sports energy drinks, vitamin water, other drinks
Energy drinks contain high kilocalorie and caffeine levels
Beverages containing acidic flavorings may result in erosion
Hyperstate
Fluid volume excess FVE
Week 11 - Water 2
Overview
Most abundant component of the body
Birth: 70 - 80% of body's weight
Adults: 50 - 60% of body weight
Adipose tissue contain less water than lean body mass LBM
Water
Body fluid
Intracellular fluid ICF
Extracellular fluid ECF
Osmotic pressure equalizes the solute concentration of ICF & ECF
Roles
Enable chemicals reactions to occur by entering into some reactions,
such as hydrolysis
Maintain stability of all body fluids, as the principle component &
medium for fluids (blood & lymph), secretions (saliva & GI fluids), &
excretions (urine & perspirations)
Enable transport of nutrients to cells & provide medium for excretion of
waste products
Act as lubricate between cells to permit movement without friction
Regulate body temperature by evaporating as perspiration from skin &
vapor from mouth & nose
Requirements
Men = 3.7L 15 - 16 cups/day)
Women = 2.7L 1112 cups)/day
Week 11 - Water 1
, Water is lost through
Urination
Perspiration
Expriration
Defecation
Sources of water
Plain tap water
Others: soft drinks, sports energy drinks, vitamin water, other drinks
Energy drinks contain high kilocalorie and caffeine levels
Beverages containing acidic flavorings may result in erosion
Hyperstate
Fluid volume excess FVE
Week 11 - Water 2
