Ulna - Wikipedia
WEBThe head of the ulna presents an articular surface, part of which, of an oval or semilunar form, is directed downward, and articulates with the upper surface of the triangular articular disk which separates it from the wrist-joint; the remaining portion, directed lateralward, is narrow, convex, and received into the ulnar notch of the radius.
Ulna (Bone): Anatomy, Location & Function - Cleveland Clinic
WEBDec 9, 2022 · 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.
Ulna – Definition, Location, Anatomy, Functions, Labeled Diagram
WEBAug 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 direct articulations with the carpal bones [7, 11].
The Anatomy, Function, and Treatment of the Ulna - Verywell Health
WEBAug 9, 2024 · The upper end (the head) of the ulna meets with the lower end of the humerus and one side of the radius. The size and location of the ulna allow for more freedom of movement and increased rotation of the forearm.
Radius and ulna: Anatomy and function - Kenhub
WEBOct 30, 2023 · The supinator crest and fossa serve as the origin for the deep (ulnar) head of the supinator muscle. The ulnar shaft bears three surfaces: an anterior, posterior and medial.
Ulnar wrist pain - Symptoms and causes - Mayo Clinic
WEBMar 9, 2024 · Ulnar wrist pain is pain on the side of your wrist opposite the thumb. The ulna is one of two forearm bones. Wrist pain can vary, depending on the cause. Ulnar wrist pain can be linked to many different types of injuries, including problems with the bones, tendons and ligaments.
The Ulna - Proximal - Shaft - Distal - TeachMeAnatomy
WEBJan 20, 2020 · 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.
The Ulna: Anatomy and 3D Illustrations - Innerbody
WEBSep 20, 2024 · A rounded process known as the head of the ulna forms the distal radioulnar joint with the concave ulnar notch of the radius. The alignment of these joint-forming processes allows the radius to rotate around the ulna at the wrist.
Ulna Bone Anatomy, Diagram & Function | Body Maps - Healthline
WEBJan 20, 2018 · Skeletal System. Ulna. The ulna is one of two bones that give structure to the forearm. The ulna is located on the opposite side of the forearm from the thumb. It joins with the humerus on...
Anatomy, Shoulder and Upper Limb, Forearm Ulna
WEBJul 24, 2023 · At the distal end, the ulna consists of two protrusions – the ulnar head and the styloid process. The head of the ulna points downward and serves as an articulating surface for the radius in a groove called the ulnar notch.