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Cardiac Muscle Tissue Quiz: Anatomy and Physiology

This cardiac muscle tissue quiz will help you practice the basic facts about this type of muscle tissue. Cardiac muscle tissue is one of the three types of muscle tissue found in the human body. The other two types of muscle tissue are smooth and skeletal muscle.

Test your knowledge of cardiac muscle tissue by taking the anatomy quiz below. Before taking the quiz, you might want to review our cardiac muscle tissue anatomy notes or watch our cardiac muscle video on YouTube.

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Cardiac Muscle Tissue Quiz: Anatomy and Physiology

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Cardiac Muscle Tissue Quiz: Anatomy and Physiology

1. Which shape best describes cardiac muscle cells?

a. Long and cylindrical

b. Branched

c. Fusiform

d. None of the above

The answer is b, branched. Cardiac muscle cells have an irregular, branched appearance that are shorter than the longer, cylindrical cells found in skeletal muscle tissue, and different from the fusiform shape of smooth muscle.

2. How many nuclei are found in cardiac muscle cells?

a. One or two

b. More than two

c. Zero

d. Five

The answer is a, one or two. These nuclei are found near the center of the cardiac muscle cells.

3. Cardiac muscle cells have striations.

a. True

b. False

The answer is a, true. Cardiac muscle cells, like skeletal muscle cells, are made up of sarcomeres that contain actin and myosin filaments, which create the dark and light bands called striations.

4. Cardiac muscle tissue is found:

a. In the heart and lungs

b. In vessels and hollow organs

c. Attaching bone to bones

d. Only in the heart

The answer is d, only in the heart. Cardiac means “relating to the heart,” and cardiac muscle tissue is ONLY found in the heart.

5. How is cardiac muscle primarily controlled?

a. On a voluntary basis via the somatic nervous system

b. On an involuntary basis via the autonomic nervous system

c. None of the above

The answer is b, on an involuntary basis. You don’t have to consciously think to make your heart beat. Instead, it just beats automatically via the autonomic nervous system.

6. What are the complex junctions called that join cardiac muscle cells?

a. Endomysium

b. Intercalated discs

c. Myocytes

d. Perimysium

The answer is b, intercalated discs. These junctions allow rapid spread of electrical impulses for efficient heart muscle contraction.

7. What is the muscle layer of the heart called?

a. Pericardium

b. Endomysium

c. Myocardium

d. Perimysium

The answer is c, myocardium. The cardiac muscle cells form the myocardium, which is the muscle layer of the heart.

8. Cardiac muscle cells are separated by connective tissue called endomysium?

a. True

b. False

The answer is a, true. Both cardiac cells and muscle fibers are separated by a layer of connective tissue called endomysium.

9. Which of the following statements is false concerning gap junctions?

a. They allow for the passage of ions between cardiac muscle cells.

b. Pacemaker cells attach to gap junctions.

c. They are found in both skeletal muscle and cardiac muscle.

d. Gap junctions are a type of cell junction within the intercalated discs.

The incorrect statement is c, gap junctions are ONLY found in cardiac muscle tissue, not in skeletal muscle tissue.

Don’t forget to tell your friends about this quiz by sharing it your Facebook, Twitter, and other social media. You can also take more fun nursing quizzes.

*Disclaimer: While we do our best to provide students with accurate and in-depth study quizzes, this quiz/test is for educational and entertainment purposes only. Please refer to the latest NCLEX review books for the latest updates in nursing. This quiz is copyright RegisteredNurseRn.com. Please do not copy this quiz directly; however, please feel free to share a link to this page with students, friends, and others.

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