Task: Text Categorization
Input (English): Protrusions of this substance in the spine are called Schmorl's nodes, and Tietze syndrome occurs when this is inflammed. Its fibro type can be found in symphyses, while the pinna is composed of its elastic type. The hyaline type of this substance is covered by the perichondrium. (*)  Intervertebral discs are made of this substance, which heals slowly due to its lack of blood vessels. Chondrocytes are cells found in this substance, and during endochondral ossification, it is replaced with bone. Patients with osteoarthritis have a loss of this substance, which normally helps lubricate joints. For ten points, name this connective tissue which makes up the human nose and ear.
Output (English): Science