Pleurae and Pleural Cavities

Question 1

What are the three (3) subdivisions of the thoracic cavity?

Answer 1

1) 2 Pleural cavities

2) Mediastinum

Question 2

What is the mediastinum?

Answer 2

The area between the two pleura cavities that will house the heart, the great vessels, the esophagus, the trachea, and other mid line strucutres

Question 3

What is the thin membrane that lines the inner surface of the thoracic cavity and covers the surface of the lungs?

Answer 3

Pleura

Question 4

Which layer of the plerua will line the inner surface of the thorax?

Answer 4

Parietal Pleura

Question 5

Which layer of the pleura will invest the lung?

Answer 5

Visceral Pleura

Question 6

T/F: The parietal and visceral pleura are one, connected piece of tissue?

Answer 6

True: The parietal pleura reflect back to become the visceral pleura at the root of the lung

Question 7

What is the potential space between the parietal and visceral pleurae?

Answer 7

Pleural Cavity

Question 8

What is the function of the pleural fluid?

Answer 8

To lubricate the pleurae to minimize friction between the parietal and visceral pleurae

Question 9

Whe function of the pleura fluid will allow for what?

Answer 9

Movement of the Lungs

Question 10

What is the largest part of the parietal pleura?

Think back to lab :)

Answer 10

Costal

Question 11

The layer of the partial pleura that will be a dome over the thorax at the base of the neck?

Answer 11

Cervical

Question 12

Where are the pleura cavities found?

Answer 12

Between the two folds of the parietal pleura

Question 13

What do the pleural recesses allow for?

Answer 13

Expansion of the lungs during inspiration

Question 14

What is the space where the costal and diaphragmatic pleurae meet along the mid-axillary line?

Answer 14

Costodiaphragmatic Recess

Question 15

What is the space formed where the costal and mediastinal pleurae meet?

Answer 15

Costomediastinal Recess

Question 16

When fluid accumulates in the costodiaphragmatic recess, what is performed to remove the fluid and where is this done?

Answer 16

Thoracentesis

-Performed in the 9th intercostal space during expiration (with an 18-gauge spinal needle-little emergency medicine note)

Question 17

What is the blood supply to the parietal pleura?

Answer 17

1) Intercostal Arteries
2) Internal Thoracic Artery
3) Phrenic Artery

Question 18

What is the blood supply to the visceral pleura?

Answer 18

Bronchial Artery

Question 19

What is the innervation to the parietal pleura?

Answer 19

1) Intercostal nerves
2) Subcostal Nerve
3) Phrenic Nerve

Question 20

What is the innervation to the visceral pleura?

Answer 20

Trick question, the visceral pleura has no sensory innervation