What is the colloquial name for the medial epicondyle of the distal humerus?

The medial epicondyle of the distal humerus is commonly referred to as the "funny bone." This term is colloquial and originates from the sensation of tingling or "funny" feeling that occurs when the ulnar nerve, which runs near the medial epicondyle, is struck or compressed. The ulnar nerve is responsible for sensation in the fourth and fifth fingers and involves motor function in the hand, making this area sensitive to injury.

The other options refer to different anatomical structures. The humeral head is the rounded proximal end of the humerus that articulates with the glenoid cavity of the scapula. The surgical neck is an area of the humerus located just below the head, where fractures are commonly seen. The capitulum is another part of the distal humerus that articulates with the radius at the elbow joint. Understanding these distinctions reinforces the significance of the "funny bone" as a unique and often misinterpreted term related specifically to the medial epicondyle and the effects of ulnar nerve compression.