Multiple choice Q`s

Question 1

The systemic Circulation is concerned with:

Answer 1

1. Delivery of oxygen to peripheral tissues
2. Collection of Co2 dioxide from peripheral tissues.
3. Delivery of carbon dioxide to the heart

Question 2

The pulmonary circulation is concerned with:

Answer 2

1. Collecting oxygen into the pulmonary vein.

2. Removing carbon dioxide from the pulmonary artery

Question 3

Typical Values of gas exchange at the lungs are:

Answer 3

250ml of o2 and 200ml Co2 per minute.

Question 4

The upper respiratory tract starts at the nose and ends at the

Answer 4

Larynx

Question 5

The right lung has:

Answer 5

3 lobes and wider primary bronchi than the left (also more vertical)

Question 6

The first airways to loose their cartilaginous rings are:

Answer 6

Upper bronchioles

Question 7

Where can gas exchange take place in the lungs?

Answer 7

Alveoli

Question 8

The BULK of the alveolar wall is made up of :

Answer 8

Type 1 Pneumocytes

Question 9

Are the right and left pleural cavities continuous with eachother?

Answer 9

NOOOOOOO

Question 10

Are the parietal and visceral pleural membranes continous with eachother?

Answer 10

YASS

Question 11

What happens to the chest wall during pneumothroax.

Answer 11

Chest wall expands due to loss of counteracting force from elastic recoil of the lungs.

Question 12

Inspiration occurs because:

Answer 12

Thoracic volume increases and alveolar pressure decreases

Question 13

What would you NOT expect in a healthy person?

Answer 13

A postive intrapleural pressure.

Question 14

At an atmospheric pressure of 760mmHg alveolar pressure between breaths would be:

Answer 14

0mmHg ( equal to difference)

Question 15

Does expiration require contraction of the abdominal and internal intercostal muscles.

Answer 15

NO

Will aid in extreme cases