RS1 continued

Question 1

Pleura

Answer 1

Membrane that line the lungs and the inside of the thoracic cavity and secrete fluid rich in proteins and water into the pleural space to lubricate and facilitate breathing - serous fluid

Question 2

Carina

Answer 2

ridge of cartilage in the trachea that occurs b/w the division of the two main bronchi

Question 3

The lungs can be subdivided into ____ and _______

Answer 3

lobes and segments

Question 4

Describe lobes and segments

Answer 4

Right lung = 3 lobes
Left lung = 2 lobes
Both have 10 segments

Question 5

The first __ branches make up the ____ zone and the rest contain ____ and are part of the ____ zone

Answer 5

16, conducting
alveoli, respiratory

Question 6

There are different types of cells from proximal to distal

Question 7

The lungs are free floating in the _____. They are thethered by ____ and _____

Answer 7

pleural space
Trachea/mainstream bronchi and large blood vessels

Question 8

What are the 2 functions of the pleural fluid in the pleural space?

Answer 8

1. reduces friction
2. Causes the two pleural membranes to stick together (adhesion)

Question 9

Describe the dual circulation of the lung

Answer 9

Pulmonary artery: gas exhancge the low-pressure and high volume of pulmonary vascualture
Bronchial artery high-pressure and low-volume which delivers oxygen to the bronchial tree

Question 10

The lung should optimally have ___ compliance and _____ resistance

Answer 10

high, low

Question 11

Lung compliance defn

Answer 11

change in lung volume per change in distending pressure

Question 12

What happens to the lung and the chest wall when the lung is removed from the chest?

Answer 12

The lung will collapses because of its eleastic properties
THe chest will expand from its elastic fibers

Question 13

Parenchyma

Answer 13

the functional part of an organ