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.
It is divided into four layers that have different structural appearances: 1  Basal Cell Layer - Keratinocytes begin in the deepest layer of the epidermis, the stratum basale, which is a row of columnar cells resting on the basal lamina that separates the epidermis from the dermis. Mitosis occurs exclusively at the basal cell layer and allows for the replacement of cells lost from the surface. Stratum Spinosum - After forming in the basal cell layer, keratinocytes migrate upwards into the stratum spinosum. In this layer, they develop short projections that attach via ...