Question 1
While auscultating heart sounds during a checkup, Andy's doctor hears a high-pitched sound during ventricular contraction. Which type of valve could cause this?
◦ deficient pulmonary semilunar valve
◦ stenotic aortic semilunar valve
◦ incompetent tricuspid valve
◦ insufficient mitral (bicuspid) valve
Question 2
Exercise results in skeletal muscles compressing veins which encourages blood to return to the heart. In this scenario, which of the following is correct?
◦ venous return decreases
◦ stroke volume decreases
◦ end diastolic volume (EDV) decreases
◦ preload increases