Vaginal lubrication - Vaginal discharge. 1  The lubricative fluid contains water, pyridine, squalene, urea, acetic acid, lactic acid, complex alcohols and glycols, ketones, and aldehydes. [1] 2  Vaginal fluid is slightly acidic and can become more acidic with certain sexually transmitted diseases. The normal pH of vaginal fluid is between 3.8 and 4.5, whereas male semen is typically between 7.2 and 8.0 (a neutral substance has a pH of 7.0). Production
Freebase(0.00 / 0 votes)Rate this definition: Keratinocyte is the predominant cell type in the epidermis, the outermost layer of the skin, constituting 90% of the cells found there. Those keratinocytes found in the basal layer of the skin are sometimes referred to as basal cells or basal keratinocytes.
The keratinocytes originate from human epidermal stem cells present in the stratum germinativum (basal layer of epidermis). The progeny of these stem cells are termed transit amplifying (TA) cells. TA cells also reside in the basal layer and undergo mitosis.s the granulosum keratinocytes are pushed into lucidum layer, they become transparent or translucent and get flattened. The lucidum keratinocytes may be 3-5 layers in thickness and may undergo apoptosis releasing fatty substance. They contain a clear intermediate form of keratin called eleidin.