Dorsal lip

Spemann s organizer. In 1924, the German physiologist Hans Spemann with Hilde Mangold transplanted a small piece of tissue from the dorsal lip of a newt blastula to a site on the ventral side of an early blastula of a differently colored species. The embryo developed a small secondary embryo, most of the tissues of which came from the host, not from the transplanted piece. It was concluded from this famous experiment that the transplanted vegetal tissues had supplied a diffusible inducer. 44337 339 qyjjg morpho-... 

Two thirds of cases of melasma are localized on the face (cheeks, forehead, nose, superior lip and chin), while one third is localized on the dorsal forearms. 

Waterhouse, J.S., Hudson, M., Pickett, J.A. and Weldon, P.J. (2001) Volatile components in dorsal gland secretions of the white-lipped peccary, Tayassu pecari, from Bolivia. J. Chem. Ecol. 27, 2459-2469. 

Haberberger RV, Bemardini N, Kress M, Hartmann P, lips KS, Kummer W (2004) Nicotinic acetylcholine receptor subtypes in nodceptive dorsal root ganglion neurons of the adult rat. Auton Neurosd 113 32-42... 

Spies M, Lips KS, Kurzen H, Kummer W, Haberberger RV (2006) Nicotinic acetylcholine receptors containing subunits alphas and alphaS in rat nociceptive dorsal root ganglion neurons, J Mol Neurosci 30(l-2) 55-6... 

A) Antennal lobe glomeruli cortical area, glomeruli internal area. (B) a-Lobe Bl, dorsal layer B2, intermediate layer B3, ventral layer. (C) Calyces lip area, basal ring area. (D) Central body UD, upper division of central body LD, lower division... 

Bilateral symmetric uniformly hyperpigmented lesions are seen in three clinical patterns [68,98,123,126] Centrofacial (63-64%) - cheeks, forehead, upper lip, nose, and chin Malar (21-27%) - cheeks and nose Mandibular (9-16%) - ramus of the mandible Other areas which may be involved are the dorsal forearms [68], rarely on the nipples and external genitalia [8]. Melasma does not involve the mucous membranes [123]. 

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