2022年12月9日 · The ulna has a notched end where it meets your humerus (upper arm bone), a long shaft in the middle that’s slightly curved and a narrow end that meets your wrist. It’s slightly longer than the radius. Even though it’s one long bone, your ulna is made up of several parts. These include: Ulna proximal aspect

The body of the ulna at its upper part is prismatic in form, and curved so as to be convex behind and lateralward; its central part is straight; its lower part is rounded, smooth, and bent a little lateralward. It tapers gradually from above downward, and has three borders and three surfaces.

2018年8月25日 · Ulna (plural: ulnae; pronunciation: úl-nu) is one of the two primary bones forming the forearms in humans, the other one being the radius. There is one ulna bone in each arm. It is a long bone [1] and is vital in forming both the wrist and elbow joints [2].

2024年10月1日 · Proximally, the ulna articulates with the humerus at the elbow joint. Distally, the ulna articulates with the radius, forming the distal radio-ulnar joint. In this article, we shall look at the anatomy of the ulna – its bony landmarks, muscle attachments and clinical correlations.

2023年10月30日 · The ulna is the medial bone of the forearm and the longer of the two parallel forearm bones. Like the radius, the ulna also has three main parts: a proximal end, shaft and a distal end. The proximal end articulates with the distal humerus and the head of the radius.

2025年1月28日 · The ulna is a long bone of the forearm, situated on the medial side (the side closest to the body when in anatomical position). [3] It consists of three main parts: the proximal end, the shaft, and the distal end.

Like other long bones of the human body, the ulna also presents with three main parts: a proximal end or proximal epiphysis, a shaft or diaphysis, and a distal end or distal epiphysis. Each of these parts presents essential anatomical landmarks.

2023年7月24日 · The ulna is one of the two forearm long bones that, in conjunction with the radius, make up the antebrachium. The bone spans from the elbow to the wrist on the medial side of the forearm when in anatomical position. In comparison to the radius, the ulna is described to be larger and longer.

2025年1月25日 · Explore the anatomy and function of the ulna with Innerbody's interactive 3D model. The ulna is the longer, larger and more medial of the lower arm bones. Many muscles in the arm and forearm attach to the ulna to perform movements of the arm, hand and wrist.

2021年2月28日 · The ulna is a longbone located medially in the forearm which extends from the elbow to the wrist joint. It runs parallel to the radius, which is the other longe bone in the forearm located laterally. The ulnar is usually slightly longer than the radius. The ulna is is involved in the wrist and the elbow joint, with the following articulations: