Caudal cell mass
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Diphallia — Diphallia, penile duplication (PD), diphallic terata, or diphallasparatus, is a medical condition in which a male infant is born with two penises. This is an extremely rare disorder with only approximately 100 cases of diphallia recorded since… … Wikipedia
Nucleus — 1) In cell biology, the structure that houses the chromosomes. 2) In neuroanatomy, a group of nerve cells. * * * 1. In cytology, typically a rounded or oval mass of protoplasm within the cytoplasm of a plant or animal cell; it is surrounded by a… … Medical dictionary
human embryology — ▪ biology Introduction the process encompassing the period from the formation of an embryo, through the development of a fetus, to birth. The human body, like that of most animals, develops from a single cell produced by the union of… … Universalium
Neurulation — Neuroscience portal Transve … Wikipedia
Regional specification — In the field of developmental biology, regional specification is the process by which different areas are identified in the development of the early embryo. The process by which the cells become specified differs between organisms. Contents 1… … Wikipedia
Somite — Transverse section of half of a chick embryo of forty five hours incubation. The dorsal (back) surface of the embryo is towards the top of this page, while the ventral (front) surface is towards the bottom … Wikipedia
Trophoblast — Blastocyst with an inner cell mass and trophoblast … Wikipedia
Blastocoele — Blastocyst … Wikipedia
Habenula — Infobox Brain Name = PAGENAME Latin = GraySubject = GrayPage = Caption = Mesal aspect of a brain sectioned in the median sagittal plane. Habenula is not labeled directly, but after expanding, look to region with habenular commissure , pineal body … Wikipedia
habenula — 1. SYN: frenulum. 2. [TA] In neuroanatomy, the term originally denoted the stalk of the pineal gland (pineal h.; pedunculus of pineal body), but gradually came to refer to a neighboring group of nerve cells with which the … Medical dictionary
