Question

36. Fenestrated endothelial cells of capillaries allow what to occur? a. Continuous and complete lining b. Multiple erythrocytes to pass through at once c. Fluid exchange between blood and interstitial fluic d. All of the above e. None of the above 37.What is responsible for pulling on the chordae tendineae to prevent the cusps from prolapsing? a. The pressure of the blood flow through the heart b. The electrical charge from the neurons in the heart wall c. The contraction of the papillary muscles d. The pressure of the pericardial cavity e. The pressure of air rushing into the lungs with every breath

Answer 1

ANSWER : 36)

Fenestrated endothelial cells of capillary are small gaps about to (40 to 70nm) through which water and fluid could be exchange between blood and interstitial fluid.

37) Papillary muscles found in ventricles of heart and contract the chordae tendinae to prevent prolapsing of cusps or valves (mitral and tricuspid) at the time of systolic contraction.