what types of cells are in connective tissue
Connective tissue The cells of connective tissue include fibroblasts, adipocytes, macrophages, mast cells and leucocytes.
Connective tissue Connective tissue has a wide variety of functions that depend on the types of cells and the different classes of fibers involved. Loose and dense irregular connective tissue, formed mainly by fibroblasts and collagen fibers, have an important role in providing a medium for oxygen and nutrients to diffuse from capillaries to cells, and carbon dioxide and waste substances to diffuse from cells back into circulation. They also allow organs to resist stretching and tearing forces. Dense regular connective tissue, which forms organized structures, is a major functional component of tendons, ligaments and aponeuroses, and is also found in highly specialized organs such as the cornea.[12]:161 Elastic fibers, made from elastin and fibrillin, also provide resistance to stretch forces.[12]:171 They are found in the walls of large blood vessels and in certain ligaments, particularly in the ligamenta flava.[12]:173
Dermis The dermis is composed of three major types of cells:[3] fibroblasts, macrophages, and adipocytes.
Connective tissue Connective tissue can be broadly subdivided into connective tissue proper, and special connective tissue.[5][6] Connective tissue proper consists of loose connective tissue and dense connective tissue (which is further subdivided into dense regular and dense irregular connective tissues.)[7] Loose and dense connective tissue are distinguished by the ratio of ground substance to fibrous tissue. Loose connective tissue has much more ground substance and a relative lack of fibrous tissue, while the reverse is true of dense connective tissue. Dense regular connective tissue, found in structures such as tendons and ligaments, is characterized by collagen fibers arranged in an orderly parallel fashion, giving it tensile strength in one direction. Dense irregular connective tissue provides strength in multiple directions by its dense bundles of fibers arranged in all directions.