VCE PE UNIT 1 questions with correct answers

Cardiovascular system - Answer Consists of heart, blood vessels and blood to adapt and meet the demands that are placed on it by delivering oxygen and nutrients to tissue, removing CO2, maintains constant temp, prevents infection. Cardiac cycle - Answer Series of events occuring through one heart beat Diastolic blood pressure - Answer Experienced when the heart relaxes and fills with blood. Systolic blood pressure - Answer Experienced when the blood is pumped into the system from the heart. Heart rate - Answer Number of times heart beats per min Stroke volume - Answer Volume of blood ejected by left ventricle in a single beat Cardiac output - Answer A measure of the volume of blood that is pumped by the heart per minute. Heart rate x stroke volume - Answer Cardiac output Arteries - Answer Carry blood away from heart Veins - Answer Return blood to heart Arterioles - Answer small arteries , regulate blood distribution