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Worksheets

Heart Structure and Function

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

What is the function of the heart?

a)

To pump blood throughout the body

b)

To filter waste from the blood

c)

To produce oxygen

d)

To regulate body temperature

2.

How many chambers does the heart have?

a)

Two

b)

Three

c)

Four

d)

Five

3.

Which chamber of the heart receives deoxygenated blood from the body?

a)

Right atrium

b)

Left atrium

c)

Right ventricle

d)

Left ventricle

4.

What is the largest blood vessel in the body?

a)

Aorta

b)

Pulmonary artery

c)

Superior vena cava

d)

Inferior vena cava

5.

Which valve separates the right atrium from the right ventricle?

a)

Tricuspid valve

b)

Pulmonary valve

c)

Mitral valve

d)

Aortic valve

6.

What is the normal rhythm of the heart called?

a)

Sinus rhythm

b)

Ventricular tachycardia

c)

Atrial flutter

d)

Ventricular fibrillation

7.

What is the main cause of arrhythmias?

a)

Development of reentrant circuits of electrical activity

b)

Increased blood pressure

c)

Lack of oxygen in the blood

d)

Genetic factors

8.

What is the life-threatening arrhythmia characterized by rapid, irregular activation of the ventricles?

a)

Ventricular tachycardia

b)

Atrial flutter

c)

Ventricular fibrillation

d)

Atrial fibrillation

9.

What is the purpose of the atria in the heart?

a)

To collect blood entering the heart and send it to the ventricles

b)

To pump blood to the lungs

c)

To pump blood to the rest of the body

d)

To regulate heart rate

10.

What is the purpose of the ventricles in the heart?

a)

To collect blood entering the heart and send it to the ventricles

b)

To pump blood to the lungs

c)

To pump blood to the rest of the body

d)

To regulate heart rate

11.

What is the term for a rhythm characterized by wide, bizarre QRS complexes and frequent ventricular premature contractions?

a)

Ventricular tachycardia

b)

Atrial flutter

c)

Ventricular fibrillation

d)

Atrial fibrillation

12.

What is the term for a rhythm characterized by rapid, irregular activation of the atria?

a)

Ventricular tachycardia

b)

Atrial flutter

c)

Ventricular fibrillation

d)

Atrial fibrillation

13.

What is the term for a rhythm characterized by AV node-independent intra-atrial macro-reentry?

a)

Ventricular tachycardia

b)

Atrial flutter

c)

Ventricular fibrillation

d)

Atrial fibrillation

14.

What is the term for a rhythm characterized by rapid, irregular activation of the ventricles and ineffective contraction?

a)

Ventricular tachycardia

b)

Atrial flutter

c)

Ventricular fibrillation

d)

Atrial fibrillation

15.

What is the purpose of the aorta in the heart?

a)

To collect blood entering the heart and send it to the ventricles

b)

To pump blood to the lungs

c)

To pump blood to the rest of the body

d)

To regulate heart rate