Chapter 4 (Viscera of Thoracic Cavity: Right and Left Pulmonary Cavity)

Question 1

(Pleurae)

The lungs are invested by and enclosed in a serous pleural sac that consists of two continuous membranes:

Answer 1

• Visceral pleura

- Partial pleura

Question 2

(Pleurae)

Visceral pleura

Answer 2

Investing the entire shiny outer surface of the lung

Question 3

(Pleurae)

Parietal pleura

Answer 3

Lining the pulmonary cavities

Question 4

(Pleurae)
The pleural cavity contains ____ ____ ____ which helps prevent the lungs from collapse and causes the lungs to expand when the thorax expands during inhation

Answer 4

Serous pleural fluid

Question 5

Lungs are the ____ ____ _____ ____, with the main function to ____ _____ ____ by bringing inspired air into close relation with the venous blood in the pulmonary capillaries.

Answer 5

vital organs of respiration; oxygenate the blood

Question 6

(Lungs)

Each lung contains:

Answer 6

• Apex
• Base
• 2-3 lobes created by 1-2 fissures
• 3 surfaces (costal, mediastinal, and diaphragmatic)
• 3 borders (anterior, inferior, and posteiror)

Question 7

(Right Lung)

Contains the ___ ___ and ____ ___ that divide into the ____ ____ ____.

Answer 7

right oblique and horizontal fissures; 3 right lobes (superior, middle, and inferior)

Question 8

(Right Lung)
Medially has a ____ where structures enter and leave the ____ posteriorly, the ____ ____ superiorly, and ____ ____ inferiorly.

Answer 8

hilum; bronchi posteriorly; pulmonary artery superiorly and pulmonary veins inferiorly.

Question 9

(Right Lung)

Medially the lung contains the following contact impressions:

Answer 9

• Cardiac impression
• Groove for the superior vena cava and right brachiocephalic vein
• Groove for the arch of azygos vein
• Groove for esophagus

Question 10

(Left Lung)

Contains a ____ ____ ____ dividing the lung into 2 left lobes (superior and inferior)

Answer 10

single oblique fissure

Question 11

(Left Lung)
The anterior border of the left lung contains a ____ ____ ____, primarily indenting the antero-inferior aspect of the superior lobe.

Answer 11

deep cardiac notch

Question 12

(Left Lung)
Has a tongue-like process at the most inferior and anterior part of the superior lobe known as the _____, and slides in and out of the _____ ____ during inspiration and expiration.

Answer 12

lingula; costomediastinal recess

Question 13

(Left Lung)

Medially, the left lung contains the following contact impressions:

Answer 13

• Cardiac impression
• Groove for the arch of the aorta and descending aorta
• Groove for the left subclavian artery

Question 14

(Diaphragm)

Will undergo contraction and relaxation, altering the …

Answer 14

volume of the thoracic cavity and the lungs

Question 15

(Diaphragm)

_____ _____ _____ separating the thoracic and abdominal cavities

Answer 15

Double-dombed musculotendinous partition.

Question 16

(Diaphragm)

Contains a fixed origin attaching to the ____ ____ of the ____ ____ and ____ ____ ____.

Answer 16

inferior margin of the thoracic cage and superior lumbar vertebrae.

Question 17

(Diaphragm)

Will contain 3 pathways that allow structures to pass between the thoracic and abdominal regions:

Answer 17

• Caval hiatus
• Esophageal hiatus
• Aortic hiatus