from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Beneath the endothelial layer
from The Century Dictionary and Cyclopedia
- Lying or occurring beneath the endothelium.
The thoracic duct has a more complex structure than the other lymphatic vessels; it presents a distinct subendothelial layer of branched corpuscles, similar to that found in the arteries; in the middle coat there is, in addition to the muscular and elastic fibers, a layer of connective tissue with its fibers arranged longitudinally.
α (GPIbα) is part of the receptor complex GPIb-V-IX, which has a critical role in hemostasis, especially through interactions with the subendothelial von Willebrand factor.