From Wikipedia, the free encyclopedia. An omnivore /ËÉmnivÉÉr/ is an animal whose species normally derives its energy and nutrients from a diet consisting of a variety of food sources that may include plants, animals, algae, fungi and bacteria.
Periosteum and Endosteum. Periosteum is a layer of vascular, innervated, dense connective tissue. surrounding the non-articular surfaces of bone. Perforating Fibers (also. called Sharpeyâs fibers) are collagen fibers that connect the periosteum to. the bone matrix. The endosteum is a thin layer of connective tissue that lines. the inside of the marrow cavity and any canals passing through the compact. bone. Both the periosteum and the endosteum membranes are osteogenic â. they contain cells that can produce bone.
The word Periosteum is derived from the Greek Peri-meaning surrounding and-osteon, meaning bone. The Peri refers to the fact that the Periosteum is the outermost layer of long bones, surrounding other inner layers.eriosteum is divided into an outer fibrous layer and inner cambium layer (or osteogenic layer). The fibrous layer contains fibroblasts, while the cambium layer contains progenitor cells that develop into osteoblasts.