Exercise, Asthma and smoking

Question 1

What 3 ways affect your gas exchange system?

Answer 1

Exercise, Asthma, Smoking

Question 2

What do your muscles need to keep you going when exercising? Why?

Answer 2

Oxygen and glucose so they can respire and release energy

Question 3

What happens during exercise?

Answer 3

Your breathing rate and depth of breathing increase so you can get more oxygen into your blood

Question 4

What happens when you exercise regularly?

Answer 4

Muscles that you use to breath (intercostal muscles and the diaphragm) will get stronger so your chest cavity can open up more when you breath in and more air gets into your lungs

Regular exercise can increase the number and size of the small blood vessels in your lungs and the number of alveoli. making gas exchange more efficient

Question 5

What are people with asthma too sensitive towards?

Answer 5

pet hair, pollen, dust, smoke

Question 6

What happens when an asthmatic breathes these things in?
Give symptoms for an asthma attack

Answer 6

The muscles around their bronchioles contract, narrowing the airways.
the lining of the airways becomes inflamed, and fluid builds up in the airways, making it hard to breathe.
- this is an asthma attack
symptoms are:
Wheezing
difficulty breathing
tight chest

Question 7

What can asthmatics use?

Answer 7

an inhaler containing drugs to open up airways

Question 8

What do cigarette smokes contain?

Answer 8

Carbon monoxide, nicotine, tar and particulates

Question 9

What does tar do?

Answer 9

Covers the cilia (little hairs) on the lining of the airways
damaged cilia can’t get rid of mucus properly
mucus sticks to the airways, making you cough (smoker’s cough)
Damage builds up leading to bronchitis - disease that inflames the lining of the bronchi- and emphysema (a disease that destroys air sacs in the lungs.
Tar has carcinogens (substances that can cause cancer)
smoking can cause any of lung, throat and mouth cancer