Is a uniform-temperature gas more or less orderly than one with several different temperatures? Which is more structured? In which can heat transfer result in work done without heat transfer from another system?
BSCI201: Anatomy &Physiology Chapter 4 (Tissues) Notes- Part 2 by Mehrnaz Ighani . Connective tissue (CT): the most abundant and widely distributed of primary tissues Major functions: binding and support, protecting, insulating, storing reserve fuel, and transporting substances 4 main classes: 1. Connective tissue proper 2. Cartilage 3. Blood 4. Bone . Common characteristics of CT: 1. All have common embryonic origin: all arise from mesenchyme tissue as their tissue of origin 2. Have varying degrees of vascularity (cartilage is avascular but bone is vascularized) 3. Cells are suspended/ embedded in extracellular matrix (ECM) . ECM supports cells so they can bear weight and withstand tension . All connective tissues have 3 main elements: 1. Ground substance 2. Fibers 3. Cells . NOTE: composition and arrangement of these 3 elements vary in different types of CT. Fibers and ground subs. Makeup the ECM Ground substance: o Gel like material that fills space between cells . medium through which solutes diffuse between blood capillaries and cells o Components: 1. Interstitial fluid 2. Cell adhesion proteins 3. Proteoglycans (sugar proteins) made up of protein core and large polysaccharides 4. Water (affecting the viscosity of ground subs.) Fibers: o 3 types of fibers provide support: 1. Collagen: . strongest, toughest, and most abundant type