The ulna is the longer of the two bones in your forearm. It helps you move your arm, wrist and hand. Your ulna also supports lots of important muscles, tendons , ligaments and blood vessels .

Aug 25, 2018 · 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].

Oct 30, 2023 · 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.

Oct 1, 2024 · The ulna is a long bone in the forearm. It lies medially and parallel to the radius, the second of the forearm bones. The ulna acts as the stabilising bone, with the radius pivoting to produce movement. Proximally, the ulna articulates with the humerus at the elbow joint.

The ulna or ulnar bone (pl.: ulnae or ulnas) [3] is a long bone in the forearm stretching from the elbow to the wrist. It is on the same side of the forearm as the little finger, running parallel to the radius, the forearm's other long bone. Longer and thinner than the radius, the ulna is considered to be the smaller long bone of the lower arm.

Jul 24, 2023 · 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.

Apr 22, 2024 · Positioned at the top end of the bone closest to the elbow, the head of the ulna is a small rounded structure that forms part of the elbow joint. It’s one of two articulating surfaces in this hinge-like joint, along with the humerus (upper arm bone).

The ulna is primarily responsible for forming the elbow joint with the humerus and the wrist joint with the radius and bones of the wrist. The ulna acts as a stabilizing structure for the forearm, enabling various movements, including the bending and straightening of the arm.

Jan 28, 2025 · The ulna is a crucial component of the forearm’s skeletal structure, primarily responsible for forming the elbow joint with the humerus and contributing to the wrist joint. Its shape and structure allow it to support various movements of the arm and hand .

Dec 12, 2023 · Meaning: What is the Ulna Bone? The ulna (plural: ulnae; pronunciation: úl-nu) is one of the two main bones constituting the forearms in humans, with the other one being the radius. Each arm contains one ulna bone. It is an elongated bone [1] that plays a crucial role in constructing both the wrist and elbow joints [2].