Numbering [edit]. Bus routes operating in or through Virginia are noted with a letter and a number. Bus routes operating in DC or Maryland use only a number, or a letter and a number, as noted below.
Cartilage: The three types of cartilage. There are three types of cartilage: 1  Hyaline-most common, found in the ribs, nose, larynx, trachea. 2  Is a precursor of bone. 3  Fibro-is found in invertebral discs, joint capsules, ligaments. 4  Elastic-is found in the external ear, epiglottis and larynx. Hyaline-most common, found in the ribs, nose, larynx, trachea. 2  Is a precursor of bone. 3  Fibro-is found in invertebral discs, joint capsules, ligaments. 4  Elastic-is found in the external ear, epiglottis and larynx.
There are three varieties of cartilage, hyaline, elastic, and fibrocartilage. The most abundant type is hyaline, found as supportive tissues in the nose, ears, trachea, larynx, and smaller respiratory tubes. As articular cartilage, hyaline is found covering the articular surfaces of bones in synovial joints.Here, hyaline cartilage reduces friction and acts as shock-absorbing tissue. to the left of the stacks of chondrocytes, the extracellular matrix of hyaline cartilage is very uniform in appearance in contrast to that of bone. 2  cartilage typically appears blue or light purple because extracellular components of the matrix attract basic stains.