Respirarory

Question 1

What is Tidal Volume?

Answer 1

The volume of air normally inhaled and exhaled per breath

Question 2

What is the additional amount of air that can be inhaled (above tidal volume)?

Answer 2

Inspiratory Reserve Volume

Question 3

What is the additional amount of air that can be exhaled (beyond tidal volume)?

Answer 3

Expiratory Reserve Volume

Question 4

What is Residual Volume?

Answer 4

The amount of air left in the lungs after maximal exhalation

Question 5

What happens to Tidal Volume when you exercise and why?

Answer 5

Tidal Volume increases because you are taking deeper breaths and breathing rate increases.

Question 6

What is the Pathway of Air?

Answer 6

1. Air passes through the nose or mouth and travels to the trachea
2. The trachea divided into two tubes (bronchi), with one going to each lung
3. The bronchi then split into smaller tubes (bronchioles)
4. The bronchioles end at the alveoli, where gaseous exchange takes place

Question 7

During exercise, inspiration is helped by other muscles.

What are they?

Answer 7

During inspiration,

the pectoral and sternocleidomastoid muscles contract

to allow more air to enter the lungs

Question 8

During exercise, expiration is helped by other muscles.

What are they?

Answer 8

During expiration,

the abdominal muscles contract

to pull the rib cage down faster, forcing air out at a quicker speed

Question 9

What happens in order to inspire?

Answer 9

Chest volume increases as air is sucked into the lungs

The intercostals contract to expand the rib cage

The diaphragm contracts and moves down

Question 10

What happens in order to expire?

Answer 10

Chest volume decreases as air is forced out of the lungs

The intercostals relax to lower the rib cage

The diaphragm relaxes and moves up