The Cardiac Cycle Phase 1 - Atrial Systole Made EASY!!

The Cardiac Cycle Phase 1 - Atrial Systole Made EASY!!

Assessment

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Biology, Health Sciences

University

Hard

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This video delves into the cardiac cycle, focusing on atrial systole. It explains the role of the SA node in initiating atrial contraction, the resulting pressure changes, and the movement of blood into the ventricles. The concept of end diastolic volume is introduced, setting the stage for understanding stroke volume in future videos.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary focus of the cardiac cycle as introduced in the video?

The process of blood clotting

The sequence of events in a heartbeat

The function of the lungs

The role of the nervous system

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the P wave in an electrocardiogram represent?

Heart relaxation

Atrial depolarization

Ventricular contraction

Blood pressure increase

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where is the SA node located?

In the right ventricle

In the left ventricle

In the right atrium

In the left atrium

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the pressure in the atria when they contract?

It fluctuates

It remains the same

It decreases

It increases

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the function of the atrioventricular valves?

To prevent blood from entering the lungs

To control blood pressure

To regulate heart rate

To allow blood to flow from the atria to the ventricles

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the end diastolic volume?

The total blood volume in the body

The blood pressure during systole

The amount of blood in the ventricles after relaxation

The amount of blood in the atria after contraction

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What phase follows atrial systole in the cardiac cycle?

Ventricular systole

Isovolumetric ventricular contraction

Ventricular diastole

Atrial diastole