Learning Outcome 12-1

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Chapter 12: The Cardiovascular System: The Heart

Describe the anatomy of the heart - including its surface features; the structure of the pericardium, heart wall, and cardiac skeleton; and the heart's blood supply - and trace the flow of blood through the heart, identifying the major blood vessels, chambers, and heart valves.

Key:
Level 1: Reviewing Facts and Terms
Level 2: Reviewing Concepts
Level 3: Critical Thinking

This activity contains 8 questions.

In the right atrium, a small depression called the persists where an oval opening, the foramen ovale, penetrated the interatrial septum from the fifth week of embryonic development until birth. [Level 2]

Label the blood vessels of the coronary circulation in the accompanying illustration (anterior view). [Level 1]

The letters A through F appear on an image associated with this question.

The letters A through F appear on an image associated with this question.

For each item below, use the pull-down menu to select the letter that labels the correct part of the image.
2.1 Marginal artery

2.2 Right coronary artery

2.3 Great cardiac vein

2.4 Circumflex artery

2.5 Anterior cardiac veins

2.6 Anterior interventricular artery

Compare and contrast the structural changes that occur during ventricular relaxation and ventricular contraction. [Level 3]

To create paragraphs in your essay response, type <p> at the beginning of the paragraph, and </p> at the end.

Which of the following statements is FALSE? [Level 3]

The connective tissues of the heart prevent overexpansion of the heart.The connective tissues of the heart form the cardiac skeleton of the heart.The connective tissues of the heart help the heart return to normal shape after contractions.The connective tissues of the heart include abundant reticular and elastic fibers.The connective tissues of the heart provide support for nerves of the myocardium.

Which of the following structural features is composed of connective tissue fibers connected to cone-shaped projections on the inner surface of the ventricle? [Level 2]

fossa ovalischordae tendineaetrabeculae carneaeaortic sinusespulmonary cusps

Label the structural features in the accompanying sectional view of the heart. [Level 1]

The letters A through F appear on an image associated with this question.

For each item below, use the pull-down menu to select the letter that labels the correct part of the image.
6.1 Opening of coronary sinus

6.2 Cusp of left AV (bicuspid) valve

6.3 Chordae tendineae

6.4 Papillary muscles

6.5 Left pulmonary veins

6.6 Interventricular septum

Discuss the structural and functional differences between the right and left ventricles. [Level 3]

To create paragraphs in your essay response, type <p> at the beginning of the paragraph, and </p> at the end.

Next to each cusp of the aortic semilunar valve are saclike expansions of the base of the ascending aorta called , which prevent the cusps from sticking to the wall of the aorta when the valve opens. [Level 3]

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