Cardiovascular System

Question 1

The cardiovascular system is also known as the…

Answer 1

Circulatory system.

Question 2

The function of the cardio vascular system is to

Answer 2

Transport materials to and from the body’s cells. Blood is the major carrier of these materials.

Question 3

The materials the cardiovascular system carries TO the body cells include: (4 materials) (H.O.N.I.)

Answer 3

Hormones, such as insulin, that are secreted by glands and nerve cells.

Oxygen from the respiratory system.

Nutrients from the digestive system.

Immune cells and products that fight infections.

Question 4

Materials the cardiovascular system carries AWAY from the body cells include: (3 materials) (W.E.C.)

Answer 4

Waste Products that eventually get excreted as urine.

Excess salts and other materials that are often retained by the body.

Carbon dioxide that eventually is exhaled.

Question 5

What are Arteries?

Answer 5

Ate thick-walled vessels that carry oxygenated blood away from the heart.

Question 6

Arteries branch out to what smaller vessel?

Answer 6

Arterioles

Question 7

Arterioles branch out into even smaller vessels called?

Answer 7

Capillaries

Question 8

What are veins?

Answer 8

Are thinner-walled vessels that carry deoxygenated blood from body cells back to the heart.

Question 9

The blood diffuses in the lungs into tiny…

Answer 9

Capilaries

Question 10

The blood,after capillaries, returns to the heart through…

Answer 10

Venules that merge to create larger veins.

Question 11

The heart has how many chambers?

Answer 11

The heart has 4 chambers.

Question 12

What are the two chambers on the upper part of the heart heart?

Answer 12

The left and right atrium.

Question 13

What are the 2 chambers of the lower part of the heart?

Answer 13

The left and right ventricle.

Question 14

Blood is transported through the body on a system of two loops, or circuits. Describe the pulmonary loop.

Answer 14

Transports deoxygenated blood from blood the right ventricle to the the lungs and carries oxygenated blood back to the left atrium.

Question 15

Describe the systemic loop.

Answer 15

Transports oxygenated blood from the left ventricle to the body and carries deoxygenated blood back to the right atrium.

Question 16

Heart cycle is?

Answer 16

The rhythmic contraction and relaxation of heart muscles.

Question 17

What is the systole?

Answer 17

Contraction of the heart muscles.

Question 18

What is the Diastole?

Answer 18

Is the the relaxation of heart muscles.

Question 19

Describe the sinoatrial node.

Answer 19

Also called the pacemaker, is located in the upper right atrium and controls heart muscle contractions by sending out electrical signals.

Question 20

Blood is made up of four components. What are they?

Answer 20

Plasma
Red blood cells
White blood cells
Platelets

Question 21

What’s plasma?

Answer 21

Is the liquid component of blood and moves cells through the body.

Question 22

Red blood cells are?

Answer 22

Also known as erythrocytes , carry oxygen from the lungs to the rest of the body and return carbon dioxide to the lungs

Question 23

Which protein in blood cells carries oxygen?

Answer 23

Hemoglobin

Question 24

What are white blood cells?

Answer 24

Also known as leukocytes, are made up of five major types of cells that fight infection in the body.

Question 25

What are platelets?

Answer 25

Are fragments of cells that facilitate blood clotting.

Question 26

Describe the lymphatic system.

Answer 26

Is a network of capillaries and veins that carry interstitial fluids and wastes through a fluid called lymph.