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Anatomy and Histology of the Heart

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Questions and Answers

What is the approximate size of an adult heart?

5 inches (12.5 cm) long, 3 1/2 inches (9 cm) wide, 2 1/2 inches (6 cm) thick (correct)

6 inches (15 cm) long, 4 inches (10 cm) wide, 3 inches (7.5 cm) thick

3 inches (7.5 cm) long, 2 inches (5 cm) wide, 1 1/2 inches (4 cm) thick

4 inches (10 cm) long, 3 inches (7.5 cm) wide, 2 inches (5 cm) thick

Where is the base of the heart located?

At the level of the 10th costal cartilages

At the level of the 5th costal cartilages

At the level of the 2nd costal cartilages (correct)

At the level of the 8th costal cartilages

What is the primary component of the anterior surface of the heart?

Left atrium

Left ventricle

Right atrium

Right ventricle (correct)

What is the function of the left ventricle?

Moves arterial blood to the systemic circulation (D) Signup and view all the answers

What is the term used to describe an interatrial septum that fails to develop properly?

Atrial septal defect (B) Signup and view all the answers

Which chamber of the heart moves venous blood to the pulmonary circulation?

Right ventricle Signup and view all the answers

What are the two lower chambers of the heart called?

Right and left ventricles Signup and view all the answers

What is the most common congenital cardiac abnormality, found in 30-60% of all newborns with a congenital heart defect?

Ventricular septal defects Signup and view all the answers

What is the term used to describe a depression in the interatrial septum, which is a remnant of the foramen ovale?

Fossa ovalis Signup and view all the answers

Where is the apex of the heart located?

At the bottom Signup and view all the answers