Blood Vessels

Question 1

oxygenated

Answer 1

supplied, treated, or enriched with oxygen.

Question 2

deoxygenated

Answer 2

remove oxygen from.

Question 3

artery

Answer 3

any of the muscular-walled tubes forming part of the circulation system by which blood (mainly that which has been oxygenated) is conveyed from the heart to all parts of the body.

Question 4

vein

Answer 4

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

Question 5

capillary

Answer 5

any of the fine branching blood vessels that form a network between the arterioles and venules.

Question 6

valve

Answer 6

a device for controlling the passage of fluid or air through a pipe

Question 7

red blood cell

Answer 7

the most abundant cell type in the blood

Question 8

white blood cell

Answer 8

the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders

Question 9

platelets

Answer 9

function of platelets is to prevent bleeding.

Question 10

plasma

Answer 10

liquid in blood

Question 11

lymphocytes

Answer 11

white cells that are crucial to our immune systems

Question 12

macrophage

Answer 12

destroying pathogens and apoptotic cells

Question 13

centrifuge

Answer 13

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

Question 14

erythrocytes

Answer 14

red blood cells

Question 15

leucocytes

Answer 15

white blood cells

Question 16

haemoglobin

Answer 16

the red pigment in red blood cells that carries oxygen

Question 17

oxyhaemoglobin

Answer 17

haemoglobin with oxygen molecules attached

Question 18

circultary system

Answer 18

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 19

vena cava

Answer 19

large vein leading into the top right chamber of the heart

Question 20

blood pressure

Answer 20

measures how strongly the blood is pumped through the body’s main arteries

Question 21

systolic pressure

Answer 21

the higher blood pressure reading during contraction of the heart muscles

Question 22

diastolic pressure

Answer 22

the lower blood pressure reading during relaxation of the heart muscles

Question 23

heartbeat

Answer 23

contraction of the heart muscle occurring about 60–100 times per minute

Question 24

pulse

Answer 24

alternating contraction and expansion of arteries due to the pumping of blood by the heart

Question 25

pacemaker

Answer 25

electronic device inserted in the chest to keep the heart beating regularly at the correct rate. It works by stimulating the heart with tiny electrical impulses.

Question 26

cardiac muscle

Answer 26

special kind of muscle in the heart that never tires. It is involved in pumping blood through the heart.