Ulna distal aspect. The lower (distal) end of your ulna forms part of your wrist joint. It ends in a rounded bump called the styloid process — the bump above your wrist on your pinkie side. The distal end is sometimes referred to as the head of your ulna.

Oct 1, 2024 · The distal end of the ulna is much smaller in diameter than the proximal end. It is mostly unremarkable, terminating in a rounded head, with distal projection – the ulnar styloid process. The head articulates with the ulnar notch of the radius to form the distal radio-ulnar joint.

Oct 30, 2023 · It is a long bone that has three main parts: a proximal end, shaft and a distal end. The proximal end has a head which articulates with both the distal humerus and the proximal ulna, while the distal end articulates with the head of the ulna and carpal bones at the wrist.

Aug 25, 2018 · The small rounded part on the distal ulnar surface is the head, and it articulates with the cup-shaped ulnar notch of the radius and the triangular fibrocartilage articular disc, a cartilage structure that keeps the ulna from forming any …

Near the wrist, the ulnar, with two eminences; the lateral and larger is a rounded, articular eminence, termed the head of the ulna; the medial, narrower and more projecting, is a non-articular eminence, the ulnar styloid process.

The lower extremity of the ulna is small, and presents two eminences; the lateral and larger is a rounded, articular eminence, termed the head of the ulna; the medial, narrower and more projecting, is a non-articular eminence, the styloid process.

The lateral, distal end of the ulna is the head of the ulna. It articulates with the ulnar notch on the radius and with the triangular articular disc in the Wrist Joint. The shaft of ulna is triangular in shape and it consists of three borders and three surfaces. It's width is decreased as it moves towards distal end. The three surfaces are:

The head of ulna is the round, expanded portion on the distal part of the bone. It contains two articular areas: —the articular circumference of head of ulna, which articulates with the ulnar notch of the radius, forming the distal radioulnar joint;

The styloid process is posteromedial to the head. The ulna appears like a pipe wrench with olecranon process appearing like the upper jaw, the coronoid fossa, the lower jaw, and the trochlear notch the mouth of the wrench. The lower end of …

Jan 28, 2025 · Description: A pointed bony projection extending from the posteromedial aspect of the ulnar head. Significance: Provides attachment for ligaments, contributing to wrist stability. The ulna articulates with the humerus at the trochlear notch, enabling flexion and extension of …