Body fluid compartments

Question 1

body fluid compartments - 1

Answer 1

intracellular fluid = inside cell

40% of body weight / 28L

• high conc of potassium/ phosphate/ proteins
• low conc of sodium/ chloride/ bicarbonate
• needed for cell process + metabolism

Question 2

body fluid compartments - 2

Answer 2

extracellular fluid = outside cell

20% of body weight/ 14L

interstitial fluid = 75%
plasma = 25%
transcellular fluid = CSF/ synovial/ occular fluids

• low conc of potassium/ phosphate/ proteins
• high conc of sodium/ chloride/ bicarbonate

Question 3

body fluid compartments - 3

Answer 3

transcellular fluid

cerebrospinal

synovia

gastrointestinal

pleural

peritoneal

pericardial

ocular

Question 4

body fluid compartments - regulation

Answer 4

osmolarity

colloid-osmotic pressure

Question 5

water balance - intake 1

Answer 5

liquids = 2L per day

Question 6

water balance - intake 2

Answer 6

food = 0.5L per day

Question 7

water balance - intake 3

Answer 7

metabolic water = 0.3L per day

Question 8

water balance - output 1

Answer 8

urine = 800-2000ml each day

Question 9

water balance - output 2

Answer 9

sweat

Question 10

water balance - output 3

Answer 10

respiratory loss

Question 11

water balance - output 4

Answer 11

fecal loss

Question 12

regulation - 1

Answer 12

osmosis

Question 13

regulation - 2

Answer 13

ADH

Question 14

regulation - 3

Answer 14

RAAS

Question 15

regulation - 4

Answer 15

sodium = major extracellular cation for osmotic pressure
potassium = major intracellular cation for RMP

sodium-potassium pump
- x3na out
- x2k in
= osmotic equilibrium

Question 16

regulation - 5

Answer 16

acid-base balance
h+/hco3- blood buffers of ph