Question

Your heart's mitral valve does an awfully big job. Letting blood from the left atrium of the heart into the left ventricle without

losing a drop is one of the toughest tasks in the circulatory system. In fact, if the system was suddenly opened at that point, the
force of the valve closing would send blood five feet in the air.
In this passage, the author's purpose is to
A describe the circulatory system.
B convince readers of the stress on the mitral valve.
C inform readers of defects in the mitral valve.
D minimize the importance of the mitral valve.

Answer 1

Answer: B

Step-by-step explanation:

Utilizes emphatic and hyperbolic language, hence isn't just about describing scientific facts of circulatory system. Uses anecdotal fact to demonstrate the shear power of the mitral valve, this anecdote does not inform readers of the defects in the mitral valve, but of the consequences if the mitral valve failed (which would not be caused by the valve itself but by other factors extreme pressure).