| Amphibian skin thus appears to have limited options for waterproofing, because it is thin, poorly keratinized, and therefore supple. |
| The stratum corneum, the top layer, is composed of dead keratinized cells. |
| These are keratinophilic organisms, and, as such, they invade keratinized tissues, including the stratum corneum, tile hair, and the nails. |
| Earliest changes in the hair follicle occur when the follicular canal becomes blocked with abnormally keratinized desquamating cells. |
| With some pertinent exceptions, dermatomycosis is typically confined to the superficial keratinized tissue and, thus, can often be treated with topical antifungal medications. |
| When oestrogen levels are high the epithelial cells become keratinized or cornified, an effect reversed by progesterone. |
