Crash Course Intro to the Heart

Crash Course Intro to the Heart

Fill in the Blanks

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 Blanks

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 Blanks

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?