Thorax — Flashcards

Flashcard 21: Lymphatics from _____ quadrant of the breast drain first into the anterior axillary lymph nodes.

Answer: upper outer

Flashcard 22: The _____ bundle branch of the bundle of His divides into anterior and posterior fascicles

Answer: left

Flashcard 23: _____ vein/venae cordis minimae, anterior cardiac veins, and the right marginal vein drain directly into the right atrium.

Answer: Thebesian

Flashcard 24: The diagonal artery is a branch of the _____ interventricular artery supplying the left ventricle

Answer: anterior

Flashcard 25: The SA node is commonly supplied by the _____ artery while the AV node is commonly supplied by the right coronary artery

Answer: right coronary

Flashcard 26: On the right side, the _____ posterior intercostal veins unite to form the right superior intercostal vein, which drains into the azygos vein.

Answer: 2nd, 3rd, and often 4th

Extra: The 1st posterior intercostal vein on both sides usually drains directly into the respective brachiocephalic vein. On the right side, the 2nd, 3rd, and often 4th posterior intercostal veins form the right superior intercostal vein, which drains into the azygos vein. On the left side, the left superior intercostal vein typically drains into the left brachiocephalic vein.

Flashcard 27: _____ to 9th intercostal spaces have their anterior intercostal arteries derived form branches of musculophrenic artery.

Answer: 7th

Flashcard 28: Azygous vein enters _____ at T4 vertebral level.

Answer: SVC

Flashcard 29: The _____ phrenic nerve passes through the muscular part of the diaphragm

Answer: left

Flashcard 30: The sequence of structures at the left hilum (superior to inferior) is: _____, Principal (hyparterial) bronchus, and Inferior pulmonary vein.

Answer: Pulmonary artery