Talcum powder is made from a soft mineral called hydrous magnesium silicate that is found throughout the world. It is crushed, dried and milled to produce powder used in cosmetic products by millions of people.
The rumen and reticulum (reticulo-rumen) is the largest compartment of the cowâs stomach. Fiber, starch, sugar, and proteins are fermented by the microbes to form volatile fatty acids and microbial protein. Rumen papillae absorb volatile fatty acids.
In the human skin, the dermal papillae (DP) (singular papilla, diminutive of Latin papula, 'pimple') are small, nipple-like extensions (or interdigitations) of the dermis into the epidermis. At the surface of the skin in hands and feet, they appear as epidermal or papillary ridges (colloquially known as fingerprints). Blood vessels in the dermal papillae nourish all hair follicles and bring nutrients and oxygen to the lower layers of epidermal cells. The pattern of ridges they produce in hands and feet are partly genetically determined features that develop before birth.