Science - lungs and gas exchange

HideShow resource information
What is the cartilage?
Cartilage is found around the trachea as a c shape this is so food can pass through the oesophagus without getting stuck
1 of 25
What are goblet cells?
These line the trachea and release mucus. This cleans your lungs
2 of 25
What is cilia?
These tiny hairs line the cells of the trachea. They beat together making a sweeping motion. Cilia removes mucus that has trapped dust particles.
3 of 25
Where does gas exchange occur?
At the small sacs called alveoli
4 of 25
Where are your lungs located?
In the upper part of your body called the thorax
5 of 25
which gases do the gases move across the alveoli to?
Either in to the blood of into the air space to be breathed out
6 of 25
What gases are involved in gas exchange?
Oxygen and carbon dioxide
7 of 25
Give 3 reasons how the alveoli are adapted for gas exchange
1) there are lots of alveoli which give a large surface area for gas exchange. 2) the alveoli are very thin do the gases don't have far to move 3) there is a steep gradient across the alveoli
8 of 25
What does the diaphragm do?
It seperates your lungs from your abdomen
9 of 25
Explain what happens when you breathe in
Your ribs expand up and come out more. Your diaphragm increases in length and makes its way dow
10 of 25
Explain what happens when you breathe out
Your ribs will go back down and go back to its normal size. Your diaphragm will reduce and flatten
11 of 25
When you breathe in which muscles contract?
Your diaphragm muscles contract and also your muscles inbetween your ribs also contract
12 of 25
Name the 3 blood vessels
Arteries, veins and capillaries
13 of 25
How much muscle do arteries have? Why?
Arteries have a lot of muscle because they put pressure on the blood so they need a lot of muscle
14 of 25
How much muscle do veins have? Why?
Veins have little muscle because they do not put pressure on the blood, so the don't need a lot of muscle
15 of 25
How much muscle do capillaries have? Why?
Capillaries have no muscle because this is where gas exchange happens
16 of 25
What are the qualities of arteries?
1) they take blood from the heart to the body 2) they have a high pressure 2) most of them carry oxygenated blood
17 of 25
What are the qualities of veins?
1) they take blood to the heart 2) they have a low pressure 3) most of them carry deoxygenated blood
18 of 25
What are the qualities of capillaries?
1) they are found next to body cells 2) gas exchange occurs + nutrients 3) no pressure 4) contain a mixture of oxygenated and deoxygenated blood
19 of 25
Name all the things that are in blood
Glucose, carbon dioxide, platelets, hormones, red blood cells, white blood cells, urea, oxygen and cells
20 of 25
What does the glucose do?
It burns it in our body cells to get energy
21 of 25
What does carbon dioxide do?
It is waste product
22 of 25
What do platelets do?
Prevent Clotting of blood
23 of 25
What do white blood cells do?
They fight viruses and bacteria
24 of 25
What do red blood cells do?
They carry oxygen to our body and we need it to get energy.
25 of 25

Other cards in this set

Card 2

Front

What are goblet cells?

Back

These line the trachea and release mucus. This cleans your lungs

Card 3

Front

What is cilia?

Back

Preview of the front of card 3

Card 4

Front

Where does gas exchange occur?

Back

Preview of the front of card 4

Card 5

Front

Where are your lungs located?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Science resources:

See all Science resources »See all Lungs and gas exchange resources »