Heart

Question 1

Distribution of right coronary artery (RCA)

Answer 1

1. Right atrium (infundibulum)
2. Right ventricle except near ANT IV groove
3. Left ventricle near POST IV groove
4. POST 1/3 of IV septum
5. Whole conducting system except part of left bundle branch
6. SA node + AV node

Question 2

Distribution of left coronary artery (LCA)

Answer 2

1. Left atrium
2. Left ventricle except near POST IV groove
3. Right ventricle near ANT IV groove
4. Part of left bundle branch
5. ANT 2/3 of IV septum

Question 3

Illustrate the venous drainage of the heart

Answer 3

Placenta → left umbilical vein → * liver → IVC → * RA → * LA → LV → arch of aorta → * descending aorta

(Also add in from top):
* deoxygenated blood from portal vein
* deoxygenated blood from SVC
* deoxygenated blood from pulmonary veins
* deoxygenated blood from pulmonary trunk