Lie on your back with your knees bent and your feet flat on the floor. Your arms should be straight by your sides, palms down. • Using your abdominal muscles, lift your knees to your chest, raising your hips off the floor. Your arms should remain flat on the floor. • Lower your legs, returning to the starting position. Describes reverse curls. Question 2 options:
True
False

Check all that occur during ventricular systole. a. the av valves open to allow blood to enter the ventricles from the atria. b. the av valves open to allow blood to enter the ventricles from the atria. c. the semilunar valves remain closed throughout systole to prevent backflow of blood into the ventricles. d. the semilunar valves remain closed throughout systole to prevent backflow of blood into the ventricles. e. the semilunar valves open to allow blood to flow into the large arteries. f. the semilunar valves open to allow blood to flow into the large arteries. g. the av valves close to prevent backflow of blood into the atria.