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10 notecards = 3 pages (4 cards per page)

Viewing:

The Cardiovascular System: Cardiac Cycle

front 1

Valves open in response to _________________ on their two sides.

back 1

Blood pressure

front 2

List the chambers/ vessels that the four valves connect:
______(1)______ Pulmonary semilunar ______(2)_____
______(3)______ Aortic semilunar ______(4)_____
______(5)______ Mitral ______(6)_____
______(7)______ Tricuspid ______(8)_____

back 2

1. R. ventricle
2. Pulmonary artery
3. L. ventricle
4. Aorta
5. L. atrium
6. Pulmonary vein
7. R. atrium
8. Inferior/superior vena cava

front 3

a. Ventricular filling occurs during______ ventricular_________.
b. Blood flows through the _______ or __________ valves into the ventricles.

back 3

1. Mid-late
2. Diastole
3. Mitral
4. Tricuspid

front 4

During Ventricular systole, what closes the AV valves?

back 4

Intraventricular pressure rising and causing ventricular contractions.

front 5

During ventricular systole, what opens the semilunar valves?

back 5

Ventricles contract, raising pressure, bblood pressure then forces the semilunar valves open.

front 6

During Isovolumetric relaxation, what closes the semilunar valves?

back 6

When blood pressure in the artery exceeds the blood pressure in the ventricle.

front 7

During Isovolumetric relaxation, what opens the AV valves?

back 7

When blood pressure in the ventricle exceeds the blood pressure in the arteries.

front 8

Why is hypertension hard on the heart?

back 8

Beacuse overtime high blood pressure causes heart muscles to thicken, which means more work to pump blood through vessels. It can cause heart disease because of heart constantly overworking.

front 9

Looking at the ventricular volume graph, the stroke volume is approximately how many ml?

back 9

70ml

front 10

During the four phases listed below, state whether the AV and semilunar valves are opened or closed:
1. Ventricular Filling
2. Isovolumetric
3. Ventricular Ejection
4. Isovolumetric

back 10

1. AV: Opened, Semilunar: Closed
2. AV: Closed, Semilunar: Closed
3. AV: Closed, Semilunar: Opened
4. AV: Closed, Semilunar: Closed