• Thumbnail for Surface ectoderm
    The surface ectoderm, AKA external ectoderm, is one of the two early embryonic divisions of the ectoderm. The other early division of the ectoderm is the...
    2 KB (207 words) - 16:54, 8 May 2024
  • Thumbnail for Ectoderm
    vertebrate embryos, the ectoderm can be divided into two parts: the dorsal surface ectoderm also known as the external ectoderm, and the neural plate,...
    16 KB (1,844 words) - 03:04, 1 September 2024
  • Germ layer (redirect from Ectoderms)
    The ectoderm generates the outer layer of the embryo, and it forms from the embryo's epiblast. The ectoderm develops into the surface ectoderm, neural...
    14 KB (1,365 words) - 17:30, 16 October 2024
  • Thumbnail for Eye development
    the eye. Specifically, the eye is derived from the neuroepithelium, surface ectoderm, and the extracellular mesenchyme which consists of both the neural...
    16 KB (1,919 words) - 17:18, 12 July 2024
  • In embryology, the otic placode is a thickening of the ectoderm on the outer surface of a developing embryo from which the ear develops. The ear, including...
    1 KB (82 words) - 14:51, 26 April 2024
  • Thumbnail for List of human cell types derived from the germ layers
    list of cells in humans derived from the three embryonic germ layers – ectoderm, mesoderm, and endoderm. Trichocyte Keratinocyte Gonadotrope Corticotrope...
    7 KB (479 words) - 15:41, 30 December 2024
  • central nervous system. Differentiation of the ectoderm into the neural crest, neural tube, and surface ectoderm is sometimes referred to as neurulation and...
    7 KB (793 words) - 01:05, 16 April 2025
  • Thumbnail for Bilaminar embryonic disc
    remain on the outside and form the ectoderm. It is not long until the ectoderm becomes the neural plate and surface ectoderm. Due to the fact that an embryo...
    11 KB (1,404 words) - 13:51, 29 August 2023
  • Thumbnail for Human eye
    ectoderm. The lens and the epithelium of the cornea arise from the surface ectoderm directly; other structures come from either the neural ectoderm or...
    80 KB (9,541 words) - 20:10, 2 July 2025
  • Thumbnail for Mesoderm
    early development of the embryo of most animals. The outer layer is the ectoderm, and the inner layer is the endoderm. The mesoderm forms mesenchyme, mesothelium...
    16 KB (1,871 words) - 14:00, 18 January 2025
  • Thumbnail for Apical ectodermal ridge
    between the intermediate mesoderm, the lateral plate mesoderm and the surface ectoderm. FGF8 in the intermediate mesoderm signals to the lateral mesoderm...
    25 KB (3,322 words) - 01:37, 27 May 2025
  • Thumbnail for Lens capsule
    accommodation. The lens vesicle is developed from surface ectoderm. It will separate from surface ectoderm at approximately day 33 in a human and only 3 days...
    15 KB (1,697 words) - 16:02, 23 March 2025
  • Thumbnail for Stomodeum
    Stomodeum (redirect from Stomodeal ectoderm)
    pericardial area and the buccopharyngeal membrane come to lie on the ventral surface of the embryo. With the further expansion of the brain, and the forward...
    2 KB (243 words) - 15:08, 16 May 2024
  • Thumbnail for SOX2
    autoregulation mediated by direct interaction of Pax6 protein with the head surface ectoderm-specific enhancer of the mouse Pax6 gene". Developmental Biology. 257...
    29 KB (3,346 words) - 19:12, 26 April 2025
  • Thumbnail for Lens placode
    density increases, the surface area is not impacted. The restricted expansion hypothesis” states that the adhesion of the ectoderm cells to the matrix is...
    4 KB (427 words) - 13:39, 23 October 2024
  • Thumbnail for Lens (vertebrate anatomy)
    bow inwards. As the placode continues to deepen, the opening to the surface ectoderm constricts and the lens cells bud off from the embryo's skin to form...
    53 KB (6,543 words) - 13:05, 2 July 2025
  • Thumbnail for Outline of the human nervous system
    matrix Eye development Neural tube: Optic vesicle Optic stalk Optic cup Surface ectoderm: Lens placode Otic placode Otic pit Otic vesicle Motor control – comprises...
    15 KB (1,360 words) - 21:03, 5 April 2025
  • Thumbnail for Neural tube defect
    encephaloceles are most likely to be caused by improper separation of the surface ectoderm and the neuroectoderm after the closure of the neural folds in the...
    51 KB (5,984 words) - 21:22, 23 May 2025
  • Thumbnail for Anotia
    sink inward forming pits which close themselves off for the outer surface ectoderm and begin forming the inner ear labyrinthe on the inside. Outer ear...
    7 KB (899 words) - 07:30, 22 June 2025
  • Thumbnail for Encephalocele
    it is termed as giant encephalocele. Separation of the neural and surface ectoderm causes apoptosis in the midline. A disturbance in this separation process...
    15 KB (1,567 words) - 21:51, 23 May 2025
  • Thumbnail for Optic vesicle
    optic vesicles suggest that the surrounding extraocular tissues – the surface ectoderm and extraocular mesenchyme – are necessary for normal eye growth and...
    4 KB (401 words) - 16:53, 8 May 2024
  • Thumbnail for Amnion
    Amnion (redirect from Amniotic ectoderm)
    extra-embryonic somatic mesoderm on the outer side and the extra-embryonic ectoderm or trophoblast on the inner side. Etymologists have traditionally assumed...
    10 KB (1,255 words) - 06:16, 3 February 2025
  • Thumbnail for Bone morphogenetic protein 4
    in the optic vesicle and weakly in the surrounding mesenchyme and surface ectoderm. This concentration gradient of BMP4 in optic vesicle is critical for...
    42 KB (5,082 words) - 17:44, 21 June 2025
  • Proctodeum Details Precursor Surface ectoderm Gives rise to Lower anal canal Identifiers Latin proctodeum Anatomical terminology [edit on Wikidata]...
    1 KB (85 words) - 14:26, 2 May 2024
  • Thumbnail for PAX6
    be inaccurate. Pax-6 is expressed as a transcription factor when neural ectoderm receives a combination of weak Sonic hedgehog (SHH) and strong TGF-Beta...
    24 KB (3,025 words) - 13:33, 30 April 2025
  • Thumbnail for Membrane-associated transporter protein
    Top expressed in iris stria vascularis hair follicle gastrula ciliary body surface ectoderm embryo primary oocyte cornea cochlea...
    12 KB (1,334 words) - 19:07, 3 June 2025
  • Thumbnail for Optic stalk
    Beebe, David C.; Taber, Larry A. (2014). "Mechanical effects of the surface ectoderm on optic vesicle morphogenesis in the chick embryo". Journal of Biomechanics...
    2 KB (198 words) - 16:25, 16 November 2021
  • Thumbnail for Serous gland
    the oral ectoderm Pancreatic acinar cells originate from the endoderm of the foregut Lacrimal gland acinar cells develop from surface ectoderm The development...
    9 KB (1,030 words) - 13:41, 30 June 2025
  • constituents of three primary germ layers, the endoderm, mesoderm, and ectoderm. The science of the microscopic structures of the tissues formed within...
    7 KB (440 words) - 18:59, 11 April 2025
  • Thumbnail for Sclerocornea
    the thickened surface ectoderm (lens placodes). (C) The interaction between the optic vesicle and the lens placode of the surface ectoderm results in optic...
    21 KB (2,058 words) - 17:23, 23 May 2025