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.
Physiology of the internal thoracic artery.
| Absent or very thin vasa vasorum |
| Dense internal elastic lamina without fenestrations |
| High integrity of endothelium |
| Thin medial layer with few smooth muscle cells |
| Enhanced secretion of prostacyclin and nitric oxide |
