A car swerved to miss a deer in the road and hit a utility pole at a low rate of speed. Damage to the car is minimal, but the 82-year-old male passenger was not wearing a seat belt and hit his head on the dashboard. He presents as confused and diaphoretic. His daughter, the driver, states that he has a history of dementia, high blood pressure, and diabetes, as well as coronary artery disease. She adds that he took his insulin about 2 hours ago. Which question to the daughter would be most important at this time?

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.