This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: ENT
Ear Lobule is made-up of: 
Select and explain. 
A. Elastic cailage, B. Hyaline cailage, C. Fibrocailage, D. All of the above
A: Elastic cailage
Answer: A: Elastic cailage 
Explanation: Ear lobule is made of elastic cailage, matrix with elastic as well as collagen fibers, thus it suppos and is highly flexible. Cailage: is a connective tissue. Chondrocytes are mature cailage cells. They are abundant extracellular matrix. They are avascular. Cailages are three types; Fibrocailage Hyaline cailage Elastic cailage Cailage Matrix Function Location Fibrocailage Type I collagen oriented parallel to stress plane Suppo with great tensile strength, resists compression and tension Annulus fibrosis of interveebral discs, Pubic symphysis Hyaline cailage Type II collagen, Chondroitin sulfate, keratin sulfate, hyaluronic acid and water Suppo tissue and organs, model for bone development Tracheal rings, Nasal septm, larynx, aicular surfaces of joints Elastic cailage Normal components of hyaline matrix plus elastic fibres Suppo with flexibility External ear, external auditory canal, epiglottis