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.
1 Basal cells are at the bottom of the epidermis and continually reproduce to form new keratinocytes.  Keratinocytes or squamous cells are in the middle layer of the epidermis and produce keratin, the protein that forms the protective outer layer. Keratin also is used to produce hair and nails.