Heart

Question 1

Name 4 chambers of heart

Answer 1

Left and right atrium

Left and right ventricle

Question 2

What kind of blood does right atrium receive?

Answer 2

Deoxygenated blood

Question 3

Where does right ventricle pump blood to?

Answer 3

Lungs

Via pulmonary artery

Question 4

What type of blood does left atrium receive?

Answer 4

Oxygenated blood

Question 5

What vein does blood from lungs go through?

Answer 5

Pulmonary vein

Question 6

Which ventricle has a thicker wall and why?

Answer 6

Left because it has to pump blood around the whole body at high pressure

Question 7

What do valves do?

Answer 7

Prevent backflow of blood in heart

Question 8

What is formula for cardiac output?

Answer 8

Heart rate bpm x stroke volume cm3

Question 9

Function of arteries?

Answer 9

Carry blood away from heart

Question 10

Function of capillaries?

Answer 10

Exchange of materials at tissues

Question 11

Function of veins?

Answer 11

Carry blood to heart

Question 12

Name of hole in blood vessels?

Answer 12

Lumen

Question 13

Describe artery walls

Answer 13

Strong
Elastic
Thick

Question 14

Describe capillary walls

Answer 14

Semi permeable

Allows diffusion of substances

Question 15

What waste products do capillaries transport?

Answer 15

Carbon dioxide

Question 16

Explain advantage of capillary walls being one cell thick

Answer 16

Increases rate of diffusion

Question 17

Another name for red blood cells?

Answer 17

Erythrocytes

Question 18

What are 4 main things in blood?

Answer 18

Red blood cells
White blood cells
Platelets
Plasma

Question 19

Job of red blood cells?

Answer 19

To carry oxygen from lungs to all cells

Question 20

Why are red blood cells shaped like a donut?

Answer 20

To increase surface area

Question 21

Do RBC have a nucleus?

Answer 21

No

Allows more room to carry oxygen

Question 22

What makes RBC red?

Answer 22

Haemoglobin

Question 23

Do white blood cells have a nucleus?

Answer 23

Yes

Question 24

Name 2 types of white blood cells?

Answer 24

Phagocytes

Lymphocytes

Question 25

What do lymphocytes produce?

Answer 25

Antibodies against microorganisms

Question 26

Why do you have a high white blood cells count?

Answer 26

When have an infection | Multiply to fight it off

Question 27

Function of platelets?

Answer 27

Help blood clotting

Question 28

What can lack of platelets cause?

Answer 28

Excessive bleeding | Bruising

Question 29

What is liquid in blood called?

Answer 29

Plasma

Question 30

What is carried in plasma?

Answer 30

``` Blood cells Platelets Nutrients Carbon dioxide Hormones Antibodies ```

Question 31

Word equation for aerobic respiration

Answer 31

Glucose + oxygen = water + carbon dioxide + energy

Question 32

Complete word equation for anaerobic respiration

Answer 32

Glucose = lactic acid

Question 33

What is area between 2 sides of heart?

Answer 33

Septum