Test 3

Systole

• Pulmonary circulation (lungs)--------> •Blood flows to ------> •Systemic circulation (body)

• Blood returns to the heart-------> •Blood fills the atria-------> •Blood flows through AV valves (high pressure) --------> Blood enters ventricles

• contraction of the ventricles

• Cardiac muscle relaxation/filling occurs

Diastole

• Pulmonary circulation (lungs)--------> •Blood flows to ------> •Systemic circulation (body)

• Blood returns to the heart-------> •Blood fills the atria-------> •Blood flows through AV valves (high pressure) --------> Blood enters ventricles

• contraction of the ventricles

• Cardiac muscle relaxation/filling occurs

What happens to the AV valve during the systole/vent contraction?

• it opens- blood goes out to the body and lungs rather than back into the ventricles.

• it returns blood back to the heart - blood goes out to the body and lungs rather than back into the ventricles.

• it does not work - blood goes forward rather than back into the atria.

• It closes -blood goes forward rather than back into the atria.

What happens to the SL valve during the diastole/vent relaxation?

• it opens- blood goes out to the body and lungs rather than back into the ventricles.

• It closes - blood goes out to the body and lungs rather than back into the ventricles.

• it does not work - blood goes forward rather than back into the atria.

• It closes -blood goes forward rather than back into the atria.

Blood returns to the heart via the?

• IVC/SVC or pulmonary veins

• Pulmonary artries

• Cardiac veins

• Vena Cava

What is the pathway of how blood returns to the heart?

• the IVC/SVC or pulmonary veins→ Due to high pressure in the atria, blood flows through the AV valves→ Blood enters the ventricles--->Blood fills the atria

• the IVC/SVC or pulmonary veins→ Due to high pressure in the atria, blood flows through the AV valves→ Blood fills the atria ---->Blood enters the ventricles

• Blood fills the atria the → IVC/SVC or pulmonary veins→ Due to high pressure in the atria, blood flows through the AV valves ---->Blood enters the ventricles

• The IVC/SVC or pulmonary veins→ Blood fills the atria→ Due to high pressure in the atria, blood flows through the AV valves→ Blood enters the ventricles

What are the determinants of Cardiac Output:

• Preload

• Afterload

• Rework

• Contractility

• Heart Rate