New Blood And Guts Notes (Ms Ford)

Question 1

What is the function of the brain

Answer 1

Controls all body activity

Question 2

What is the function of the heart

Answer 2

Pumps blood around the body

Question 3

What is the function of the lungs

Answer 3

Take in oxygen. Remove carbon dioxide

Question 4

What is the function of the kidneys

Answer 4

Filters the blood

Re absorbs useful substances from the blood

Question 5

What is the function of the small intestine

Answer 5

Absorbs digestive food

Question 6

What is the order of the body systems in humans

Answer 6

Circulatory ➡️ digestive ➡️ endocrine ➡️ muscular ➡️ nervous ➡️ skeletal

Question 7

What is the function of the skeletal system

Answer 7

Protection, movement, support

Question 8

What is the function of the muscular system

Answer 8

Movement

Question 9

What is the function of the respiratory system

Answer 9

Gas exchange (oxygen in, carbon dioxide out)

Question 10

What is the function of the circulatory system

Answer 10

Pump blood to deliver oxygen & glucose & to pick up carbon dioxide

Question 11

What is the function of the digestive system

Answer 11

Absorbs digested food

Question 12

What is the function of the nervous system

Answer 12

To send messages from sense organs to the brain

Question 13

What is the function of the endocrine system

Answer 13

To release hormones which regulate body processes

Question 14

What happens when we breathe in (inhale)

Answer 14

Intercostal muscles contract 
Rib cage raises
Diaphragm lowers
Lungs inflate
Volume increase, pressure decreases
Air is drawn into lungs

Question 15

What happens when we breathe out (exhale)

Answer 15

Intercostal muscles relax 
Rib cage lowers 
Diaphragm raises 
Lungs deflate 
Volume decreases, pressure increases
Air is forced out of the lungs

Question 16

What is the heart made up of

Answer 16

It is made up of cardiac tissue

It has 4 chambers

Question 17

What are the 4 chambers in the heart

Answer 17

Right atrium
Right ventricle
Left atrium
Left ventricle

Question 18

Where does the right ventricle send blood

Answer 18

Pumps blood to the lungs

Question 19

Where does the left ventricle send blood

Answer 19

Pumps blood to the whole body

Question 20

What is the pathway in the circulatory system

Answer 20

Path way of blood

1. Blood from the body
2. Vena cava vein
3. Right atrium
4. Right ventricle
5. Pulmonary vein
6. Lungs
7. Pulmonary vein
8. Left atrium
9. Left ventricle
10. Aorta artery
11. Blood to the body
12. Arteries
13. Capillaries
14. Veins

Question 21

What are the three types of blood vessels

Answer 21

Arteries, capillaries, veins

Arteries divide up into capillaries, then capillaries join up to make veins

Question 22

Explain arteries

Answer 22

Arteries:

• thick muscular walls
• a narrow channel
• carry blood under pressure away from the heart
• a pulse indicate that blood is flowing through an artery
• arteries carry oxygen and nutrients

Question 23

Explain Capillaries

Answer 23

• thin walled to allow exchange of gas, food and wastes
• capillaries form networks through organs and tissues and have a large surface area
• oxygen leaves capillaries and enters tissue/cells
• carbon dioxide leaves tissues/cells and enters capillaries

Question 24

Explain veins

Answer 24

• veins thin muscular walls and a wide channel and carry blood under low pressure to the heart
• veins contain valves to prevent blood flowing backwards
• veins carry carbon dioxide and wastes

Question 25

What are the levels of organisation

Answer 25

Cells ➡️ tissues ➡️ organs ➡️ systems ➡️ organism