Thoracic Wall: Accessory Structures Flashcards Preview

Gross II Exam II > Thoracic Wall: Accessory Structures > Flashcards

Flashcards in Thoracic Wall: Accessory Structures Deck (9)
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1
Q

The intercostal nerves arise from what?

A

The ventral (anterior) primary rami of the first 11 thoracic spinal nerves

2
Q

The subcostal nerve arises from what?

A

the ventral (anterior) primary ramus of the 12th thoracic spinal nerve

3
Q

Which layer of the thorax is typically a fatty layer?

A

The Superficial Fascia

4
Q

What layer of the thorax is an investing layer around the muscles?

A

Deep Fascia Layer

5
Q

What is the potential space of the thorax?

A

Pleural Cavity

6
Q

What is the function of the endothoracic fascia?

A

Prevent the innermost intercostal muscle from rubbing against the parietal pleura.

7
Q

What is a thickening of the endothoracic fascia over the apex o the lung is called what?

A

Suprapleural Membrane

8
Q

From superior to inferior, what is the order of the structures in the intercostal space?

A

1) Intercosatl Vein
2) Intercostal Artery
3) Intercostal Nerve

9
Q

What are the intercostal structures “sandwiched” between?

A

The Inner and Innermost Intercostal Muscles