Answer:
1-frontal plane
2-common carotid arteries
3-brachiocephalic artery
4-left subdlavian artery
5-arch of the aorta
6-left atrium
7-posterior intermodal
8-middle internodal
9-atrioventricular byndle (AV)
10-right ventricle
11-right atrium
12-left ventricle
13-right & left bundle branches
Step-by-step explanation: