Circulatory System

Question 1

The organ system that transports materials such as oxygen, nutrients, and hormones throughout the body.

Answer 1

Circulatory System

Question 2

The fluid of the circulatory system. It carries substances such as (oxygen, glucose, nutrients). Without these, the body cells cannot carry out aerobic respiration.

Answer 2

Blood

Question 3

The liquid matrix of blood. Makes up half of the blood’s volume. 90% to 92% water. The main function is to exchange water and dissolved substances with the fluid that surrounds the body’s cells. Participate in antibodies, clotting factors, cholesterol transports.

Answer 3

Plasma

Question 4

Participate in the exchange of O2 and CO2. Originate from the stem cells of red bone marrow.

Answer 4

Red Blood cells

Question 5

The protein that carries O2. Gives the red blood cells its pigment.

Answer 5

Hemoglobin

Question 6

Participate in immunity responses. Larger than red blood cells retain their nuclei, and lack hemoglobin Also originates from stem cells in the red bone marrow. Provoke inflammation, destroy microbes, produce antibodies.

Answer 6

White Blood Cells

Question 7

Small, colorless cell fragments that participate in blood clotting by producing web of proteins.

Answer 7

Platelets

Question 8

Platelets attract plasma proteins called __________, which produces web of proteins for clotting.

Answer 8

Clotting factors

Question 9

Type of circulatory system where the fluid is pumped through short vessels that lead to open spaces in the body cavity. the fluid can exchange nutrients and materials with the body cells before going back to the heart. (antrophods and mollusks)

Answer 9

Open Circulatory System.

Question 10

Type of circulatory system where the fluid/blood remains within the vessels that exchange materials with the fluid of the body cells. (vertebrates, annelids, squids, octopuses)

Answer 10

Closed circulatory system

Question 11

Large vessels that conduct blood away from the heart.

Answer 11

Arteries

Question 12

Arteries branch into _______, which are smaller vessels that then branches again to _______, the bodies tiniest blood vessels.

Answer 12

Arterioles, capillaries

Question 13

Slightly larger vessels that unite to form veins that carry blood back to the heart.

Answer 13

Venules

Question 14

Delivers deoxygenated blood from the areas above the diaphragm to the right atrium of the heart.

Answer 14

Superior Vena cava

Question 15

Delivers deoxygenated blood from the areas below the diaphragm to the right atrium of the heart.

Answer 15

Inferior Vena Cava

Question 16

The deoxygenated blood from the right atrium passes through the right ventricle into the ____________ to go to the lungs, where the blood picks up O2 and unloads CO2.

Answer 16

Pulmonary arteries

Question 17

The oxygenated blood from the lungs is carried out by the ____________ to the left atrium of the heart.

Answer 17

Pulmonary veins

Question 18

The oxygenated blood from the left atrium will enter left ventricle where the oxygenated blood will be distributed by _________(largest artery) throughout the body.

Answer 18

Aorta

Question 19

The signal/impulses that begins the heartbeat. It contracts the atria to fill the heart atriums with blood.

Answer 19

SA node/pacemaker

Question 20

The signal/impulse that makes the ventricles contracts sending blood away from the heart atriums.

Answer 20

AV node