Cadiovascular system

Question 1

Blood

Answer 1

Blood is a substance inside your body that carries food, oxygen and other stuff to your body to keep you alive.

Question 2

blood Vessels

Answer 2

Vessels are the tubes that blood travel throughout your body and connect to your heart.

Question 3

Heart

Answer 3

Heart is the organ inside your body that pumps and travels blood to other parts in your body.

Question 4

De-oxygenated blood

Answer 4

De-oxygenated blood is blood that doesn’t contain oxygen.

Question 5

Oxygenated blood

Answer 5

Oxygenated blood is blood that contains oxygen.

Question 6

Capillary

Answer 6

A Capillary transports blood through capillary bases through 1 cell wide tubes.

Question 7

erythrocytes

Answer 7

erythrocytes are red blood cells

Question 8

leucocytes

Answer 8

leucocytesa are white blood cells

Question 9

plasma

Answer 9

plasma is the yellowish, liquid part of blood that contains water, minerals, food and wastes from cells

Question 10

red blood cells

Answer 10

red blood cells are living cells in the blood that transport oxygen to all other living cells in the body

Question 11

haemoglobin

Answer 11

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

Question 12

oxyhaemoglobin

Answer 12

oxyhaemoglobin is haemoglobin with oxygen molecules attached

Question 13

white blood cells

Answer 13

white blood cells are living cells that fight bacteria and viruses as part of the human body’s immune system

Question 14

platelets

Answer 14

platelets are small bodies involved in blood clotting. They are responsible for healing by clumping together around a wound.

Question 15

circulatory system

Answer 15

circulatory system is the body system that circulates oxygen in blood to all the cells of the body. The circulatory system consists of the heart, the blood vessels and blood.

Question 16

arteries

Answer 16

arteries are hollow tubes (vessels) with thick walls carrying blood pumped from the heart to other body parts

Question 17

veins

Answer 17

veins are blood vessels that carry blood back to the heart. They have valves and thinner walls than arteries.

Question 18

capillaries

Answer 18

capillaries are minute tubes carrying blood to body cells. Every cell of the body is supplied with blood through capillaries.

Question 19

vena cava

Answer 19

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

Question 20

‘lub dub’

Answer 20

‘lub dub’ is the sound made by the heart valves as they close

Question 21

left atrium

Answer 21

left atrium is the upper left section of the heart where oxygenated blood from the lungs enters the heart

Question 22

right atrium

Answer 22

right atrium is the upper right section of the heart where deoxygenated blood from the body enters

Question 23

left ventricle

Answer 23

left ventricle is the lower left section of the heart, which pumps oxygenated blood to all parts of the body

Question 24

right ventricle

Answer 24

right ventricle is the lower right section of the heart, which pumps deoxygenated blood to the lungs

Question 25

valves

Answer 25

valves are the flap-like folds in the lining of a blood vessel or other hollow organ that allow a liquid, such as blood, to flow in one direction only