The Plural Cavity

Question 1

Paritela pleura - 4 parts

Answer 1

Question 2

Pleural Recesses
1. Costodiaphragmatic Recesses

2. Costomediastinal Recesses

Answer 2

1. Costodiaphragmatic Recesses
   - Potential spaces between the peripheral diaphragmatic pleura and costal pleura
2. Costomediastinal Recesses
   - Potential spaces between costal pleura and the mediastinal pleura posterior to the sternum

Question 3

Pulmonary Collapse

Answer 3

• Sufficient amount of air enters the pleural cavity surface tension holding visceral to parietal pleura breaks
• Lungs collapse because of elastic recoil
• Potential space becomes a real space

Question 4

Define the terms:
Pneumothorax
Hydrothorax
Hemothorax
Chylothorax

Answer 4

Pneumothorax: Entry of air into the pleural cavity, Bullet wound, fractured ribs

Hydrothorax: Accumulation of fluid in the pleural cavity, Result of pleural effusion

Hemothorax: Accumulation of blood in the pleural cavity

Chylothorax: Lymph from a torn thoracic duct accumulating in the pleural cavity

Question 5

Pleuritis

Answer 5

• Inflammation of the pleurae
• Makes smooth surfaces rough causing friction
• Acute pleuritis

Question 6

Lungs

Answer 6

Function: To oxygenate the blood by bringing inspired air into close relation with the venous blood in the pulmonary capillaries

Question 7

Define Lung Resections:
1. Pneumonectomy
2. Lobectomy
3. Segmentectomy

Answer 7

1. Pneumonectomy: removal of lung
2. Lobectomy: removal of lobe
3. Segmentectomy: Removal of one or more bronchopulmonary segments