Single Choice

Statement 1: Small amount of urea enters the thick segment of Henle's loop which is transported back to interstitium by collecting tubules. Statement 2: Collecting tubules and the thick segment of Henle's loop are permeable to urea.

ABoth statements 1 and 2 are correct.
BStatement 1 is correct but statement 2 is incorrect.
CStatement 1 is incorrect but statement 2 is correct.
DBoth statements 1 and 2 are incorrect.
Correct Answer

Solution

Chordae tendineae are cords that prevent the valve from collapsing back into the right atrium during powerful right ventricular contraction. When the right ventricle contracts forcing blood into the pulmonary artery, the tricuspid valve closes the aperture to the right atrium thereby preventing any backflow of blood. Thus, if chordae tendineae of the tricuspid valve becomes partially non-functional, then the flow of blood into the pulmonary artery will be reduced.
So the correct answer is 'Both statements 1 and 2 are incorrect.'.

SIMILAR QUESTIONS

Animal Physiology: Circulation and Excretion

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Which of the following statements is correct?

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