Cartilage as the cricoid cartilage and carina. Cartilage is composed of specialized cells called chondrocytes that produce a large amount of collagenous extracellular matrix, abundant ground substance that is rich in proteoglycan and elastin fibers. Cartilage is classified in three types, "elastic cartilage", "hyaline cartilage" and "fibrocartilage", which differ in relative amounts of collagen and proteoglycan. Cartilage does not contain blood vessels (it is avascular) or nerves (it is aneural). Nutrition is supplied to the chondrocytes by diffusion. The compression of the articular cartilage or flexion of the elastic cartilage generates fluid flow, which assists diffusion of nutrients to the chondrocytes.
System anatomy models. One of the key features of the system anatomy is its simplicity. That, of course, means that the anatomy cannot replace other models or design tools. It is only another way of describing the design, in SW tools, on paper or in the heads of the system engineers. The system anatomy can be used as a starting point when creating an integration anatomy (aka project anatomy) that has more use as a project management tool. The following example is a simplified example of a system anatomy for an issue management system. "This anatomy is drawn with the most basic