File:Implanting human conceptus 01.jpg

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Implanting Conceptus

Earliest specimen (H710) available in this set.

  • C - conceptus embedded in the superficial endometrium
  • G - well-developed endometrial glands
  • M - myometrium

(Stain - Haematoxylin Eosin) Scale bar = 1.0 cm.

  • Embryo H710 estimated to be of 43 days GA (menstrual age).
  • conceptus was embedded within the superficial layer of a highly secretory endometrium.
  • uterine glands displayed the sawtooth appearance characteristic of the late secretory phase of the menstrual cycle and were filled with copius secretions.

Links: Implantation | Placenta Development


Hempstock J, Cindrova-Davies T, Jauniaux E & Burton GJ. (2004). Endometrial glands as a source of nutrients, growth factors and cytokines during the first trimester of human pregnancy: a morphological and immunohistochemical study. Reprod. Biol. Endocrinol. , 2, 58. PMID: 15265238 DOI.


© 2004 Hempstock et al; licensee BioMed Central Ltd. This is an open-access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Cite this page: Hill, M.A. (2024, April 18) Embryology Implanting human conceptus 01.jpg. Retrieved from

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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current23:14, 3 June 2012Thumbnail for version as of 23:14, 3 June 20121,056 × 834 (246 KB)Z8600021 (talk | contribs)==Implanting Conceptus== A) In the earliest specimen available, H710, the conceptus (C) can be seen embedded in the superficial endometrium overlying well-developed endometrial glands (G) M, myometrium. (Haematoxylin and eosin) Scale bar = 1.0 cm.

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