from The Century Dictionary.
- Of or pertaining to atresia; characterized by atresia; imperforate.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective anatomy Having no
Sorry, no etymologies found.
The aortic valve, which separates the left ventricle and the aorta, is too small or completely closed (atretic).
The mitral valve, which separates the two left chambers of the heart, is too small or completely closed (atretic).
These degenerate follicles have been termed spurious corpora lutea, or atretic vesicles.
The interstitial cells are the remains of these atretic vesicles.
NR5A1 is expressed in the undeveloped follicles during the preantral phase. 38 It is also expressed in theca interna cells, in luteinized and nonluteinized granulosa cells, and in corpus luteum during the luteal phase, as well as in both atretic follicles and degenerating
reported that Sumo-1, based on immunohistochemical analyses, is expressed in both healthy and atretic mouse granulosa cells in vivo, suggesting that Sumo-1 may function both during follicular development and atresia.