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: Anatomy
In temporomandibular joint least vascularity is seen in which of the following - 
Select and explain. 
A. Articular cartilage, B. Anterior part of articular disc, C. Posterior part of articular disc, D. Central part of articular disc
D: Central part of articular disc
Answer: D: Central part of articular disc 
Explanation: There is a profuse capillary collar hugging margin of avascular fibrous disc. The vascular crown is thickest posteriorly less so anteriorly and some what meager medially and laterally but not centrally.