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
Incudo malleal joint belongs to which of the following group of joints? 
Select and explain. 
A. Saddle joint, B. Pivot joint, C. Plane synol joint, D. Condylar joint
A: Saddle joint
Answer: A: Saddle joint 
Explanation: Incudomalleal joint formed by the aiculation of head of malleus and head of incus is a saddle joint. Examples of Saddle joints: ? 1st carpometacarpal joints? Sternoclavicular joint? Calcaneocuboid joint? Incudo malleolar joint