Cardiovascular System

Question 1

Arteries

Answer 1

Blood vessels that deliver oxygen-rich blood from the heart to the tissues of the body

Question 2

Blood vessels

Answer 2

Channels that carry blood throughout your body

Question 3

Capillaries

Answer 3

Tiny blood vessels that transport blood, nutrients and oxygen to cells in your organs and body systems

Question 4

Deoxygenated

Answer 4

Deoxygenated is defined as oxygen has been removed

Question 5

Heart

Answer 5

Heart is a fist-sized organ that pumps blood throughout your body and is primary organ of your circulatory system

Question 6

Oxygen

Answer 6

Oxygen helps organisms grow, reproduce, and turn food into energy

Question 7

Oxygenated

Answer 7

Addition of oxygen to any chemical or physical system, including the human body

Question 8

Pulmonary circulation

Answer 8

Vast network of arteries, veins, and lymphatics that function to exchange blood and other tissue fluids between the heart, the lungs, and back

Question 9

Systemic circulation

Answer 9

Provides the functional blood supply to all body tissue. It carries oxygen and nutrients to the cells and picks up carbon dioxide and waste products

Question 10

Veins

Answer 10

Veins are blood vessels in humans, and most other animals that carry blood towards the heart

Question 11

Size of heart

Answer 11

The heart weighs between 7 and 15 ounces (200 to 425 grams) a little larger than the size of your fist

Question 12

How many chambers does the heart have

Answer 12

The heart has 4 chambers

Question 13

Location of heart

Answer 13

Midsagittal

Question 14

Apex

Answer 14

The apex is the pointed tip of the heart. It is located on the lower portion of the heart (left ventricle)

Question 15

Endocardium

Answer 15

The endocardium consists of a single layer of endothelial cells lining the chambers of the heart.

Question 16

Myocardium

Answer 16

The myocardium is the muscular wall of the heart, or the heart muscle. It contracts to pump blood out of the heart and then relaxes as the heart refills with returning blood.

Question 17

Pericardium

Answer 17

The pericardium is a membrane, or sac, that surrounds your heart. It holds the heart in place and helps it work properly

Question 18

Atria

Answer 18

The upper two heart chambers are called atria. Atria are separated by an interatrial septum into the left atrium and the right atrium. Atria receive blood returning to the heart from the body and

Question 19

Ventricles

Answer 19

The lower two chambers of the heart are called ventricles. Ventricles pump blood from the heart to the body.

Question 20

Tricuspid valve

Answer 20

The tricuspid valve is on the right side of the heart. It separates the upper and lower chambers, also known as the right atrium and ventricle. The valve allows deoxygenated blood to flow through both of the chambers

Question 21

Pulmonary valve

Answer 21

Opens to allow blood to be pumped from the right ventricle to the lungs (through the pulmonary artery) where it will receive oxygen

Question 22

Mitral valve

Answer 22

The mitral valve is a valve that lets blood flow from one chamber of the heart, the left atrium, to another called the left ventricle

Question 23

Aortic valve

Answer 23

The aortic valve—the main outflow valve for the left heart—is the valve between the heart and the body. The aortic valve opens when the left ventricle squeezes to pump out blood, and closes in between heart beats to keep blood from going backward into the heart