healthy heart and lungs

Question 1

what is blood made from

Answer 1

red blood cells,white blood cells,platelets and plasma

Question 2

what is plasma

Answer 2

a liquid that carries glucose + oxygen around the body. this is by carrying red blood cells, white blood cells and plateletes

Question 3

what dose red blood cells contain

Answer 3

haemoglobin which carries oxygen

Question 4

what dose white blood cells do

Answer 4

destroys bacteria + viruses

Question 5

what does platelets do

Answer 5

they bind onto complementary binding sites,specific, making anti-bodies

Question 6

what are the two main types of white blood cell

Answer 6

lympocytes produce specific antibodies, phagocytes which engulfs bacteria

Question 7

how do vaccines work

Answer 7

the vaccine has a complementary shape to the virus which makes anti-bodies to the virus. antibodies have specific complementary binding sites for only one type of particle.

Question 8

what do vaccines stimulate

Answer 8

the immune system

Question 9

what are the four chambers

Answer 9

-right atrium
-right venticle
-left atrium
-right venticle

Question 10

what do valves do

Answer 10

open and close letting the blood pass through or not

Question 11

what dose the colonary artery

Answer 11

it supplies oxygenated blood to the muscular wall of the heart

Question 12

what dose the vena cava vein do

Answer 12

takes blood from the body to the heart

Question 13

what does the pulmonary artery do

Answer 13

takes blood from the heart to the lungs

Question 14

what dose the pulmonary artery do

Answer 14

takes blood from the heart to the lungs

Question 15

what does the pulmonary vein do

Answer 15

take blood to the heart from the lungs

Question 16

what does the aorta do

Answer 16

takes blood from the heart to the body

Question 17

what is the differnce between the left side of the heart compared to the right

Answer 17

it is thicker because it pumps blood around the whole body, while the right side only pumps it to the lungs

Question 18

what happens if glucose and ocygen dont reach the heart

Answer 18

the person will have a cardiac arrest

Question 19

what happens when the heart contracts and pumps blood into the arteries under pressure

Answer 19

blood pressure

Question 20

what is the average blood pressure in a adult

Answer 20

120/80 mmhg

Question 21

what is caused if the blood pressure is greater than 160/90

Answer 21

high blood pressure

Question 22

what is high blood pressure caused by

Answer 22

inncorect diet, lack of exercise, being overweight

Question 23

what can high blood pressure cause

Answer 23

heart attacks and strokes

Question 24

what can low blood pressure cause

Answer 24

fainting and heart failure

Question 25

what are bronchi

Answer 25

the 2 branches which join the windpipe to the lungs

Question 26

what is an air sac

Answer 26

a thin walled sac surrounded by capillaries (tiny blood vessels)

Question 27

what do air sacs do

Answer 27

they allow oxygen to pass from the lungs into the blood and carbon dioxide to pass from the blood to the lungs

Question 28

what is a capillaries

Answer 28

small vessles which form a network

Question 29

what is your breathing rate measured by

Answer 29

how many breaths you take in a minute

Question 30

what is tidal volume

Answer 30

the volume of air breathed in and out in one normal breath

Question 31

what is vital capacity

Answer 31

a measure of the maximum volume of air that a person can breathe out