Hair is made of a tough protein called keratin. A hair follicle anchors each hair into the skin. The hair bulb forms the base of the hair follicle. In the hair bulb, living cells divide and grow to build the hair shaft. Blood vessels nourish the cells in the hair bulb, and deliver hormones that modify hair growth and structure at different times of life.
Phylum definition, Biology. the primary subdivision of a taxonomic kingdom, grouping together all classes of organisms that have the same body plan. See more. Dictionary.com
Phylactery may refer to: Tefillin, boxes containing Torah verses worn by some Jews when praying; An amulet or charm, worn for its supposed magical or supernatural power; A speech scroll in medieval art, which contains or represents speech; In fantasy. An object used by a lich to contain its soul and protect it from death, common in fantasy games