The limb bud is a structure formed early in limb development. As a result of interactions between the ectoderm and underlying mesoderm, formation occurs roughly around the fourth week of development as mesenchymal cells from the lateral plate mesoderm and the somites begin to proliferate to the point where they create a bulge under the ectodermal ...
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http://en.wikipedia.org/wiki/Limb_bud
(from the article `animal development`) The mesodermal masses of the limb rudiments proliferate, and, covered with thickened epidermis, form on the surface of the body conical protrusions ... ...located between each half of the mandible and each second branchial arch. The heart, which was previously the chief ventral prominence, now sha...
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http://www.britannica.com/eb/a-z/l/51
The limbs of vertebrates start as outpushings of mesenchyme surrounded by a simple epithelium. The distal region is referred to as the progress zone. There has been extensive study of positional information within the limb bud that determines, for example: the proximal distal pattern of bone development and the anterior posterior specification of d...
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http://www.encyclo.co.uk/local/20973
one of the four lateral swellings appearing in vertebrate embryos, which develop into the two pairs of limbs.
Found on
http://www.encyclo.co.uk/local/21001
The limbs of vertebrates start as outpushings of mesenchyme surrounded by a simple epithelium. The distal region is referred to as the progress zone. There has been extensive study of positional information within the limb-bud that determines, for example, the proximal-distal pattern of bone development and the anterior-posterior specification of digits.
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http://www.encyclo.co.uk/visitor-contributions.php
Type: Term Definitions: 1. an ectodermally covered mesenchymal outgrowth on the embryonic flank giving rise to either the forelimb or hindlimb.
Found on
http://www.medilexicon.com/medicaldictionary.php?t=12660
A swelling on the trunk of an embryo that will give rise to an arm or leg as fetal development continues. Limb buds begin to form around the 4th week of fetal development.
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http://www.pregnology.com/
No exact match found.
