term 4 yr 8

Question 1

What does the circulatory system do

Answer 1

Responsible for transporting oxygen nutrients to your body’s cells
Keeps wastes away from nutrients (carbon dioxide)

Question 2

Arteries

Answer 2

Tubes with thick elastic muscular walls that carry blood under high pressure away from your heart

Question 3

Veins

Answer 3

Tubes with thin Wallsend possess valves that prevent the blood from flowing backwards

Question 4

Capillaries

Answer 4

Transport substance such as oxygen and nutrient to cells and remove wastes such as carbon dioxide

Question 5

Red blood cells

Answer 5

Contain a protein called hemoglobin, which carries oxygen from the lungs to all parts of the body

Question 6

White blood cells

Answer 6

Referred to as ‘soldiers’ in the blood as they are involved in fighting diseases

Question 7

Platelets

Answer 7

In the blood to help it to colt and plug damaged blood vessels
This seal prevents germs getting in

Question 8

Deoxygenated blood

Answer 8

Used blood, stripped from oxygen

pumps to lungs to become oxygenated

Question 9

Oxygenated blood

Answer 9

Pumped out through arteries to your body tissues

Delivers oxygen and nutrients

Question 10

Role of the Respiratory system

Answer 10

To get oxygen in and carbon dioxide out

Question 11

Passage of oxygen

Answer 11

Air –> Nose/Mouth –> Pharynx –> Larynx –> Trachea –> Left or Right Bronchi –> Bronchioles –> Alveoli

Question 12

Claudius Galen

Answer 12

Human heart 2 chambers
Source of the body’s heat
Blood made by liver

Question 13

Andreas Vesalius

Answer 13

Necessary to direct bodies to find out how they work.

Discovered anatomical structures previously unknown

Question 14

William Harvey

Answer 14

Assisted in revising the structure of the human heart

Question 15

Diaphragm

Answer 15

Tightens when you breath in. Lungs expand, air is pulled into them
Relaxes when you breath out and lung size reduces to push air out

Question 16

Asthma triggers

Answer 16

• Vigorous exercise
• Cold weather
• Cigarette smoke
• Dust and dust mines
• Moulds
• Pollen
• Air pollution
• Some foods and food additives
• Some animals

Question 17

Asthma symptoms

Answer 17

• Difficulty breathing
• wheezing
• coughing
• tight feeling in the chest

Question 18

Asthma

Answer 18

Preventer:
Make linings of airways less sensitive

Relievers:
Open up airways once an attack has started

Question 19

Role of digestive system

Answer 19

Brakes down food so that nutrients it contains can be absorbed into your blood and carried to each cell in your body

Question 20

Mechanical digestion

Answer 20

Physically breaking down food e.g. using teeth

Question 21

Chemical digestion

Answer 21

Using chemicals called enzymes to break down food into smaller molecules

Question 22

Enzymes

Answer 22

Increase the rate of the chemical reactions in Chemical digestion

Question 23

Problems in excretory system

Answer 23

Kidney diseases make it so that people are not able to remove waste materials from their blood effectively.