Transport in Humans - Cardiac Cycle

Transport in Humans - Cardiac Cycle

Let's explore the 3 stages of the cardiac cycle together

Multiple Choice

During atrial systole, which muscles contract?

• muscles of the atrium wall

• muscles of the ventricle wall

Multiple Choice

During atrial systole, which muscles relax?

• muscles of the atrium wall

• muscles of the ventricle wall

Multiple Choice

When the muscles in the atrium contract, what happens to the pressure in the atrium?

• increases

• decreases

• no change

Multiple Select

During atrial systole, what is the direction of blood flow?

• blood flows from left atrium to left ventricle

• blood flows from left ventricle to aorta

• blood flows from right atrium to right ventricle

• blood flows from right ventricle to pulmonary artery

Open Ended

During atrial systole, what happens to the bicuspid and tricuspid valves? (Think: Where is its location in the heart?)

Multiple Choice

In ventricular systole, which muscles contract?

• muscles of the atrium wall

• muscles of the ventricle wall

Multiple Choice

In ventricular systole, which muscles relax?

• muscles of the atrium wall

• muscles of the ventricle wall

Multiple Choice

When the muscles in the ventricle contract, what happens to the pressure in the ventricle?

• increases

• decreases

• no change

Multiple Select

During ventricular systole, what is the direction of blood flow?

• blood flows from left ventricle to pulmonary artery

• blood flows from left ventricle to aorta

• blood flows from right ventricle to aorta

• blood flows from right ventricle to pulmonary artery

Open Ended

During ventricular contraction, what happens to the bicuspid and tricuspid valves? (Think: Where is its location in the heart?)

Open Ended

During ventricular contraction, what happens to the pulmonary and aortic valves? (Think: Where is its location in the heart?)

Multiple Choice

In atrial and ventricular diastole, which muscles contract?

• muscles of the atrium wall

• muscles of the ventricle wall

• none of the above, both muscles in the atrium and ventricle wall relax

Multiple Select

During atrial and ventricular diastole, what is the direction of blood flow?

• blood from vena cava enters the left atrium

• blood from vena cava enters the right atrium

• blood from pulmonary vein enters left atrium

• blood from pulmonary vein enters right atrium

Open Ended

During atrial and ventricular diastole, what happens to the pulmonary and aortic valves? (Think: Where is its location in the heart?)

Open Ended

During atrial and ventricular diastole, what happens to the bicuspid and tricuspid valves? (Think: Where is its location in the heart?)