The aortic valve:
A. closes during ventricular systole and facilitates adequate ventricular filling.
B. contains five cusps that prevent the backflow of blood into the left ventricle.
C. regulates the flow of blood from the left ventricle to the systemic circulation.
D. attaches to papillary muscles that contract and tighten the chordae tendineae.
Answer: C. regulates the flow of blood from the left ventricle to the systemic circulation.
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Which EEG waveform is called the “relaxed wave,” have a high voltage, and are often seen in the drowsy patient?
A. theta B. delta C. beta D. alpha
The atria are separated from each other by a walled membrane known as the ________.
Fill in the blank(s) with the appropriate word(s).
Convert a height of 68 inches to feet and inches