Definitions

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 opening

Etymologies

Sorry, no etymologies found.

Examples

  • The aortic valve, which separates the left ventricle and the aorta, is too small or completely closed (atretic).

    Hypoplastic Left Heart Syndrome (HLHS)

  • The mitral valve, which separates the two left chambers of the heart, is too small or completely closed (atretic).

    Hypoplastic Left Heart Syndrome (HLHS)

  • These degenerate follicles have been termed spurious corpora lutea, or atretic vesicles.

    Hormones and Heredity

  • The interstitial cells are the remains of these atretic vesicles.

    Hormones and Heredity

  • 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

    New England Journal of Medicine

  • 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.

    PLoS ONE Alerts: New Articles

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