Organ system

Question 1

Cardiovascular

Answer 1

Relating to the heart and blood vessels.

Question 2

Blood

Answer 2

The red liquid that circulates in the arteries and veins of humans.

Question 3

Heart

Answer 3

An organ that pumps blood through the circulatory system.

Question 4

Deoxygenated

Answer 4

Some of the oxygen that has been removed from the blood.

Question 5

Oxygenated

Answer 5

Blood that has been supplied in the lungs.

Question 6

artery

Answer 6

the muscular-walled tubes forming part of the circulation system by which blood is conveyed from the heart to all parts of the body.

Question 7

vein

Answer 7

the tubes forming part of the blood circulation system of the body, carrying in most cases oxygen-depleted blood towards the heart.

Question 8

capillary

Answer 8

Capillaries form a network throughout the body for the exchange of oxygen.

Question 9

valve

Answer 9

valves of the heart that prevents the backflow of blood through its cusps or flaps of tissues.

Question 10

red blood cell

Answer 10

The primary function of red blood cells is to transport oxygen to body cells and deliver carbon dioxide to the lungs.

Question 11

white blood cell

Answer 11

white blood cells are the cells of the immune system that are involved in protecting the body against both infectious diseases.

Question 12

platelets

Answer 12

Platelets are tiny blood cell fragments that help your body form clots to stop bleeding.

Question 13

plasma

Answer 13

A yellowish fluid that helps move the blood around the body.

Question 14

lymphocytes

Answer 14

A type of blood cell with a single round nucleus, occurring, especially in the lymphatic system.

Question 15

macrophage

Answer 15

A macrophage is a type of phagocyte, which is a cell responsible for detecting, engulfing and destroying pathogens and apoptotic cells.

Question 16

centrifuge

Answer 16

a machine with a rapidly rotating container that applies centrifugal force to its contents

Question 17

erythrocytes

Answer 17

erythrocytes are also known as red blood cells

Question 18

leucocytes

Answer 18

leucocytes are another word for white blood cells

Question 19

haemoglobin

Answer 19

haemoglobin is the red pigment in red blood cells that carries oxygen

Question 20

oxyhaemoglobin

Answer 20

oxyhaemoglobin is haemoglobin with oxygen molecules attached

Question 21

vena cava

Answer 21

vena cava large vein leading into the top right chamber of the heart

Question 22

diaphragm

Answer 22

diaphragm flexible, dome-shaped, muscular layer separating the chest and the abdomen. It is involved in breathing.

Question 23

vital capacity

Answer 23

vital capacity the largest volume of air that can be breathed in or out at one time

Question 24

cellular respiration

Answer 24

cellular respiration the chemical reaction involving oxygen that moves the energy in glucose into the compound ATP. The body is able to use the energy contained in ATP.

Question 25

glucose

Answer 25

glucose a simple carbohydrate and the simplest form of sugar

Question 26

respiratory system

Answer 26

respiratory system the body system involving the lungs and associated structures, which take in air and supply the blood with oxygen to deliver to the body’s cells so they can carry out their essential functions; it also performs gas exchange to remove the waste gas carbon dioxide

Question 27

trachea

Answer 27

trachea narrow tube from the mouth to the lungs through which air moves

Question 28

bronchi

Answer 28

bronchi the narrow tubes through which air passes from the trachea to the smaller bronchioles and alveoli in the respiratory system. Singular = bronchus.

Question 29

bronchioles

Answer 29

bronchioles small branching tubes in the lungs leading from the two larger bronchi to the alveoli

Question 30

alveoli

Answer 30

alveoli tiny air sacs in the lungs at the ends of the narrowest tubes. Oxygen moves from alveoli into the surrounding blood vessels, in exchange for carbon dioxide.

Question 31

pulmonary vein

Answer 31

pulmonary vein the vessel through which oxygenated blood travels from your lungs to the heart

Question 32

arterioles

Answer 32

arterioles vessels that transport oxygenated blood from the arteries to the capillaries

Question 33

aorta

Answer 33

aorta a large artery through which oxygenated blood is pumped at high pressure from the left ventricle of the heart to the body