Module 2 - Body Fluids

Question 1

compartments of body fluids

Answer 1

• Extracellular fluid (ECF) everything outside cells
• Intracellular fluid (ICF) inside all cells

Question 2

extracellular fluid

Answer 2

• Makes up internal body environment
  Divides into
• Interstitial fluid, directly outside bathing cells
• Plasma, watery portion of blood

Question 3

intracellular fluid

Answer 3

• Inside
• Low; sodium (Na+) Calcium (Ca+) Chloride (Cl-)
• High; potassium (K+) proteins

Question 4

plasma

Answer 4

• Outside
• Low; potassium (K+) calcium (Ca+) proteins
• High; sodium (Na+) chloride (Cl-)

Question 5

interstitial fluid

Answer 5

• Outside
• Low; potassium (K+) calcium (Ca+) proteins
• High; sodium (Na+) chloride (Cl-)

Question 6

role of cell membrane

Answer 6

• Causes differences in composition
• Form barrier between intercellular & extracellular fluids
• Barrier is selectively permeable
• More K+ inside, more Na+ outside

Question 7

contents of plasma

Answer 7

• mostly water
• small amount of proteins, ions, nutrients, gases, waste
• colloidal solution, contains suspended substances (proteins)