L03: Body Fluids

Question 1

Which compartments is extracellular fluid (fluid outside cells) found

Answer 1

intravascular (inside blood vessels but not blood cells)
Interstitial (between cells)
Transcellular (chambers/spaces lined by epithelial)

Question 2

Where is transcellular fluid found

Answer 2

In cells only

Question 3

Where is most of out water content found ? Intracellular or extracellular

Answer 3

Intracellular

Question 4

What is the blood made of

Answer 4

Plasma

Haematocrit

Question 5

What is the haematocrit

Answer 5

Platelets
Leukocytes
Erythrocytes

Question 6

What does the plasma involve

Answer 6

Sodium
Potassium
Calcium
Chloride 
Bicarbonate 
Glucose

Question 7

What is an osmole

Answer 7

The measure of NUMBER of molecules that a compound dissociates into when dissolved in solution

Question 8

What happens to the osmole of 100mmol NaCl when it dissolves in a solution

Answer 8

Becomes 200m osm due to na+ and Cl- ions dissociated from the compound

Question 9

What is osmolality

Answer 9

The number of osmoles per unit mass of solvent (osm.kg-1)

Question 10

What is osmolarity

Answer 10

Number of osmoles per unit volume of solution (osm.L-1)

Question 11

Is osmosis driven by osmalality or osmolarity

Answer 11

Osmolality

Question 12

What is an osmotic pressure

Answer 12

The force that occurs between 2 solution with a semipermeable membrane and difference in conc of the 2 solutions. Ions cannot pass through the membrane so water moves to equal out the concentrations.

Question 13

What is an isotonic solution

Answer 13

When there is no net movement of fluid from the cells and fluid.

Question 14

What is an isosmotic solution

Answer 14

Solutions that share the same osmolality

Question 15

What pressure is generated by proteins when it cannot pass the capillaries

Answer 15

Oncotic pressure