Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
![[Table/Fig-3]:](https://www.ncbi.nlm.nih.gov/core/lw/2.0/html/tileshop_pmc/tileshop_pmc_inline.html?title=Click%20on%20image%20to%20zoom&p=PMC3&id=4572945_jcdr-9-AD05-g003.jpg)
Lumen of arch of aorta showing only two ostia; the first, ostium of common trunk giving origin to brachiocephalic trunk (green probe, BCT) and left common carotid artery (red probe, LCCA) and a second ostium of vertebro-subclavian trunk (VST)
