According to Frank-Starling law of the heart, with an increase in venous return:

Question

According to Frank-Starling law of the heart, with an increase in venous return:

there would be a drop in cardiac output due to a decrease in the ejection fraction

this would result in an increase in end-diastolic volume, thus increasing cardiac output

the cardiac myofibers will be stretched, thus decreasing contractile force

this would cause a dromotropic effect

2)

At this portion of the capillary, we measured that the hydrostatic pressure of the capillary was 22 mmHg while the hydrostatic pressure of the interstitial fluid was 0.5 mmHg. We also found that the colloid osmotic pressure of blood plasma was 27 mmHg and that of the interstitial fluid was 0 mmHg. Therefore, fluid is being ___ with a net force of ___ mmHg.

reabsorbed, -5.5 mmHg

filtered, 5.5 mmHg

filtered, 21.5 mmHg

reabsorbed, -21.5mmHg

Explanation / Answer

Net filtration pressure = (capillary hydrostatic pressure+ interstitial osmotic pressure) - (interstitial hydrostatic pressure + capillary osmotic pressure)

Lests put value,NFP= (22+0)-(27+0.5)

= 22-27.5

= -5.5 is net reabsorption pressure

So option A is correct.

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