Definition: Quinquepunctate, also known as a quincuncial space, is a term used in anatomy to describe the position of the biceps brachii muscle. This muscle, which runs parallel to the elbow joint and connects the humerus (the upper arm bone) with the radius (the middle finger bone), plays a crucial role in the movement of the hand. When this muscle is quinquepunctate, it means that it is not fully engaged or contracted,