GA 4

Question 1

What supplies the left ventricle? What does it branch off of?

Answer 1

1. Right posterolateral A; posterior left ventricular a.

2. Posterior interventricular A. pf the RCA; circumflex a. of the LCA

Question 2

Does the anterior inter ventricular a. or posterior supply more of the AV bundle/branches?

Answer 2

anterior

Question 3

What does the inter ventricular septal branches supply? Where do they come from?

Answer 3

1. inter ventricular septum, AV bundle, and right/left bundle branches
2. LCA

Question 4

What is supplied by the branches of the internal thoracic artery?

Answer 4

1. Pericardicophrenic a. –> pericardium, diaphragm

2. Musculophrenic a. –> 7-9th intercostal spaces, diaphragm

Question 5

Relevant branches of the axillary

Answer 5

1. Superior thoracic a. –> 1-2 intercostal spaces and superior Serratus anterior m

Question 6

When does the aorta become the descending abdominal aorta?

Answer 6

when it exits the aorta hiatus

Question 7

Unpaired visceral branches of the aorta

Answer 7

1. Mediastinal A. : supply LNs of post mediastinum
2. Esophageal A. : supplies middle 1/3 of esophagus
3. Pericardial A. : small branches to the pericardium

Question 8

Paired lateral visceral branches of aorta

Answer 8

1. Right Bronchial A: hilum of right lung (descending thoracic aorta, posterior intercostal a. left bronchial a)
2. Left Bronchial A: hilum of left lung (from descending thoracic aorta)

Question 9

Paired Segmental Parietal Branches of aorta

Answer 9

1. Posterior intercostal a.
   a. dorsal branch
   b. collateral branch
   c. lateral cutaneous a (supplies skin/subcut tissue on lateral trunk)
2. Subcostal a.

Question 10

What vascular plane is the superior phrenic a?

Answer 10

NONE–> supplies thoracic diaphragm

Question 11

Where does the coronary sinus empty?

Answer 11

the right atrium; it drains the great, middle, and small cardiac veins

Question 12

What veins run with the anterior inter ventricular A and the right marginal A?

Answer 12

1. great cardiac v.

2. small cardiac v.

Question 13

What veins comprise the superior vena cava? inferior?

Answer 13

1. right/left brachiocephalic, azygous

2. right and left common iliac

Question 14

What does the azygous v drain?

Answer 14

posterior interposta v from the right side of the posterior thoracic wall
*hemiazygous and accessory azygous v drains from the left side

Question 15

What do these things drain?

1. Thoracic duct
2. Subclavian trunk
3. jugular trunk
4. Bronchomediastinal trunk

Answer 15

1. LE, pelvis, abdomen, left half to the thorax, left UE, left head/neck
2. UE and axilla
3. cranial/cervical LNs
4. parasternal, paratracheal, paraesophageal, superior phrenic, brachiocephalic LN