CCV

Question 1

Atrial diastole

Answer 1

-Atrium relaxes and fills with blood via vena cava & pulmonary vein
-Weight of blood forces open AV valves

Question 2

Atria systole

Answer 2

-Atrium contracts forcing remaining blood into the ventricles
-AV valves close to prevent backflow

Question 3

Ventricular diastole

Answer 3

-Ventricles relax
-blood passively moves into ventricles
-Takes 0.5 seconds

Question 4

Ventricular systole

Answer 4

-Ventricles contract
-Forces blood out through semi-luna valves
-Blood leaves the heart via the aorta and pulmonary artery
-Takes 0.3 seconds

Question 5

Cardiac output

Answer 5

The volume of blood that ejected from the left ventricle per minute.
Rest=5L/min
Sub=12L/min
Max=30L/min

Question 6

Stroke volume

Answer 6

The volume of blood ejected from the left ventricle per minute.
Rest=70ml
Sub=120ml
Max=150ml

Question 7

Heart rate

Answer 7

How many times the heart beats per minute.
Rest=70bpm
Sub=100bpm
max=220-age