Thorax — Flashcards

Flashcard 101: The _____ recurrent laryngeal nerve passes through the superior thoracic aperture.

Answer: left (right/left)

Flashcard 102: The vagus nerve lies in the _____ mediastinum.

Answer: posterior inferior

Flashcard 103: Thoracic duct passes through the _____ hiatus in the diaphragm

Answer: aortic

Flashcard 104: Superior epigastric and Musculophrenic artery are terminal branches of _____ artery

Answer: internal thoracic

Flashcard 105: The inferior thyroid vein is a tributary of _____ vein

Answer: Brachiocephalic

Flashcard 106: The trachea lies in the _____ mediastinum.

Answer: superior

Flashcard 107: Which ribs are known as typical ribs?_____

Answer: 3-9

Flashcard 108: The typical intercostal nerve pierces the deep fascia at how many points?_____

Answer: 2

Extra: Typical intercostal nerves (3rd–6th) pierce the deep fascia at **two points** to reach the skin: 1. **Lateral cutaneous branch**: Pierces the muscles and deep fascia in the midaxillary line. 2. **Anterior cutaneous branch**: Pierces the muscles and deep fascia near the sternum. *Note: While the spinal nerve has a posterior ramus that pierces the fascia posteriorly, the intercostal nerve is the anterior ramus itself and only provides the lateral and anterior cutaneous branches.*

Flashcard 109: The mediastinum is divided into superior and inferior by a line joining sternal angle to the _____ intervertebral disc.

Answer: T4-T5

Flashcard 110: Cardiac valves contain a dense collagenous core called _____ at the outflow surface, connected to valve supporting structures

Answer: fibrosa