Crash Course Intro to the Heart

Crash Course Intro to the Heart

Fill in the Blank

The heart's main function is to maintain _____________

Multiple Choice

What cavity is the heart located?

• pleural

• sternal

• mediastinum

• myocardial

Multiple Select

What is the correct order for the layers of the heart from superficial to deep?

• Endocardium, myocardium, epicardium

• myocardium, endocardium, epicardium

• epicardium, myocardium, endocardium

Open Ended

What is the main function of the valves in the heart?

Fill in the Blank

Arteries always carry blood ______________ from the heart.

Veins always carry blood _____________ the heart.

Multiple Choice

Which is the correct order blood flows during the Pulmonary circut?

• Right ventricle, pulmonary trunk, R/L pulmonary veins, Lungs, R/L pulmonary arteries, Left atria

• Right ventricle, pulmonary trunk, R/L pulmonary arteries, Lungs, R/L pulmonary veins, Left atria

• Left ventricle, pulmonary trunk, R/L pulmonary arteries, Lungs, R/L pulmonary veins, Left atria

Fill in the Blank

The inferior and superior ___________ return deoxygenated blood back to the Right atria

Multiple Select

What causes the "lub" sound of your heartbeat?

• AV valves closing

• AV valves opening

• Semilunar valves closing

• Semilunar valves opening

Multiple Select

What causes the "dub" sound of your heartbeat?

• AV valves closing

• AV valves opening

• Semilunar valves closing

• Semilunar valves opening

Multiple Choice

What does the top number of a blood pressure reading represent?

• diastolic pressure

• atria relaxing

• systolic pressure

• ventricles relaxing

Multiple Select

What causes the "dub" sound of your heartbeat?

• AV valves closing

• AV valves opening

• Semilunar valves closing

• Semilunar valves opening

Open Ended

Explain how cardiac muscle cells are different from skeletal muscle cells.

Multiple Choice

Which is considered the "pacemaker" of the heart?

• Atrialventrical node

• Purkinje Fibers

• Sinoatrial node

• bundle of HIS

Multiple Select

Which describes how the ventricles contract? Check all that apply

• Even

• coordinated

• bottom up

• top down

• low pressure

Open Ended

Explain how a defibrilator can save your life.

Open Ended

Why do you think the aorta is the largest artery in the body?