Cardiovascular System

Question 1

How many times does your heart beat each day?

Answer 1

100,000 times

Question 2

How much blood does the heart pump each minute?

Answer 2

1.5 gallons

Question 3

What is the #1 cause of death?

Answer 3

Heart disease

Question 4

About the size of what coin is a normal heart valve?

Answer 4

Half dollar coin

Question 5

What is the largest heart ever recorded belonged to?

Answer 5

Grey whale

Question 6

What does the heart pump to the body?

Answer 6

Oxygenated and nutrient-rich blood

Question 7

What does the heart pump to the lungs?

Answer 7

Deoxygenated blood containing wastes

Question 8

Where is the heart located?

Answer 8

Under rib cage and in between the lungs

Question 9

On average, how big is the heart compared to a person’s body?

Answer 9

About the size of that person’s clenched fist

Question 10

What are the four chambers of the heart?

Answer 10

• Right Atrium
• Right Ventricle
• Left Atrium
• Left Ventricle

Question 11

What are the upper two chambers of the heart called?

Answer 11

Atria

Question 12

What are the lower two chambers of the heart called?

Answer 12

Ventricles

Question 13

What is the function of the septum in the heart?

Answer 13

Divides the heart into right and left halves

Question 14

How many heart valves are there?

Answer 14

4

Question 15

What is the purpose of heart valves?

Answer 15

Prevent backflow of blood, keep blood flowing in one direction

Question 16

Fill in the blank: Deoxygenated blood from the body flows through the _______.

Answer 16

superior and inferior vena cava

Question 17

What happens to blood in the lung capillaries?

Answer 17

Blood picks up oxygen and transfers carbon dioxide

Question 18

What brings oxygenated blood back to the heart?

Answer 18

Right and left pulmonary veins

Question 19

What is the flow of blood through the heart starting from the right atrium?

Answer 19

• Right atrium
• Tricuspid valve
• Right ventricle
• Pulmonary semilunar valve
• Pulmonary arteries
• Lungs
• Pulmonary veins
• Left atrium
• Mitral valve
• Left ventricle
• Aortic semilunar valve
• Aorta

Question 20

What is the pulmonary circuit?

Answer 20

Movement of blood from the heart to the lungs and back to the heart

Question 21

What is the systemic circulation?

Answer 21

Movement of blood from the body to the heart and back to the body

Question 22

What is systole?

Answer 22

Contract

Question 23

What is diastole?

Answer 23

Relax

Question 24

What is myogenic control?

Answer 24

The heart continues to beat outside of the body due to electrical signals from within the heart muscle

Question 25

What are the three parts of the electrical system of the heart?

Answer 25

* Sinoatrial (SA) node * Atrioventricular (AV) node * Bundle of His and Purkinje fibers

Question 26

What is the role of the SA node?

Answer 26

Sets the pace of the heart, also called the pacemaker

Question 27

What condition is characterized by the heart being too weak or stiff to pump blood effectively?

Answer 27

Congestive Heart Failure

Question 28

What happens during a myocardial infarction?

Answer 28

The coronary artery is blocked, preventing blood from supplying the heart with oxygen

Question 29

What is atrial fibrillation?

Answer 29

Abnormal electrical impulses in the atrium cause irregular heartbeat

Question 30

List three ways to prevent heart disease.

Answer 30

* Don’t smoke or use tobacco * Exercise 30 minutes a day * Eat a heart healthy diet

Question 31

Fill in the blank: A heart healthy diet includes _______.

Answer 31

Fruits, Vegetables, Whole grains, Nuts, Fish, No saturated or trans fats