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The Heart

What are the two functions of the heart?

Pulmonary & Systemic circuit

Wrong

The right side is the _ circuit

Pulmonary

Wrong

The left side is the _ circuit

Systemic

Wrong

What are the two primary layers of the pericardium?

Fibrous and serous

Wrong

Epicardium is the _ layer of the serous pericardium

Visceral

Wrong

The _ consists of _ muscle and is arranged in _ patterns

Myocardium, cardiac, circular

Wrong

The endocardium lines the:

Internal walls of the heart

Wrong

The right atrium receives oxy-poor (deoxy) blood from which 3 vessels?

Superior vena cava, Inferior vena cava, coronary sinus

Wrong

What are the 3 internal walls of the left and right ventricle?

Trabeculae carnaeae, papillary muscles, chordae tendineae

Wrong

What are the 4 functions of the cardiac skeleton?

1. Anchors valve cusps 2. Prevents overdilation of valve openings 3. Main point of insertion for cardiac muscles 4. Blocks direct spread of electrical impulse

Wrong

The "lub" sound is the _ and _ valves closing

Tricuspid and bicuspid

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The "dup" sound is the _ and _ valves closing

Pulmonary and aortic

Wrong

Systole is the _ of the heart chamber

Contraction

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Diastole is the _ of the heart chamber

Expansion

Wrong

Which circuit is longer and offers greater resistance to blood flow?

Systemic

Wrong

The _ ventricle is 3 times thicker than the _ ventricle

Left, right

Wrong

The coronary arteries supply blood to the:

Muscular walls of the heart

Wrong

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