1. What is the main method for exchange of nutrients at the systemic capillaries

Question

1. What is the main method for exchange of nutrients at the systemic capillaries and what is the main force that enables this method to occur?

a. transcytosis; vesicles

b. osmosis; pressure

c. simple diffusion; concentration gradient

d. bulk flow; pressure

2. Match the correct direction of fluid and solute movement with the force driving that movement.

a. all of the answers are correct

b. Into interstitial fluid: blood hydrostatic pressure

c. Into interstitial fluid: interstitial fluid osmotic pressure

d. Into capillary: blood colloid osmotic pressure

3. How does pulmonary ventilation affect venous return?

a. expiration lowers stroke volume

b. expiration increases pressure in thoracic cavity

c. inspiration lowers pressure in thoracic cavity

d. inspiration lowers heart rate

Explanation / Answer

1) c. Simple diffusion: concentration gradient

2) a. All the answers are cporrect

3) d. Inspiration lowers heart rate

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