B1.2.3 - Breathing

Question 1

What happens to the volume of the lungs when you are breathing out?

Answer 1

It decreases

Question 2

Which muscles relax during exhalation

Answer 2

Intercostal (rib) muscles

Diaphragm

Question 3

Inhalation means…

Answer 3

breathing in

Question 4

The scinetific term for breathing is…

Answer 4

ventilation

Question 5

Which muscle contract during inhalation?

Answer 5

Intercostal (rib) muscles

Diaphragm

Question 6

What happens to the volume of the lungs when you are breathing in?

Answer 6

It increases

Question 7

Exhalation means…

Answer 7

breathing out

Question 8

What happens to the intercostal muscles when they relax?

Answer 8

They move the ribcage down and in

Question 9

What happens to the intercostal muscles when they contract?

Answer 9

The move the ribcage up and out

Question 10

What happens to the pressure in your lungs, causing you to breath in during inhalation?

Answer 10

It decreases

Question 11

What happens to the diaphragm when it contracts?

Answer 11

It flattens (moves down)

Question 12

What happens to the diaphragm when it relaxes?

Answer 12

It moves up

Question 13

Do muscles contract or relax when you breath out?

Answer 13

Relax

Question 14

Do muscles contract or relax when you breath in?

Answer 14

Contract

Question 15

What happens to the pressure in your lungs, causing you to breath out during exhalation?

Answer 15

It increases

Question 16

Compare what happens in the lungs when a human breathes in and out.

Answer 16

1. Ribcage moves up when we breathe in and
2. moves down when we breathe out.
3. Diaphragm moves down/contracts when we breathe in
4. and moves up/relaxes when we breathe out.
5. Chest volume increases when we breathe in
6. and decreases down when we breathe out.