Respiratory System 3

Question 1

The lungs

Answer 1

• paired cone shaped organs one lying on each side of the mid line in the thoracic cavity
• Each lung has an apex, base, tip, costal surface and mediastinal surfaces.

Question 2

Explain the apex of the lung

Answer 2

• Is surrounded and rises into the root of the neck about 25mm above the level of the clavicle.

Question 3

The base of the lung

Answer 3

• concave and semilunar in shape and lies on the upper surface of the diaphragm

Question 4

The coastal surface of the lung

Answer 4

• A broad outer surface of the lung that lies directly against the coastal cartilages, the ribs and the intercoastal muscles

Question 5

The medial surface of the lung

Answer 5

• medial surface of each lung faces the other directly across the space between the lungs called the mediastinum

Question 6

What separates the lungs

Answer 6

• heart
• Structures of the mediastinum

Question 7

The pleural

Answer 7

• A closed sac of serous membrane containing serous fluid that covers the lungs.

Question 8

Divisions of the pleural

Answer 8

• Parietal pleura
• Visceral pleura

Question 9

Parietal pleura

Answer 9

• attached to the surface of the lungs and extends upwards into the base of the neck.

Question 10

Visceral layer

Answer 10

• is attached to the surface of the lungs and extends into the fissures which provides the lungs into lobes.

Question 11

What separates the parietal and visceral pleura

Answer 11

• pleural fluid