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L’ulna. C’est l’os médial de l’avant-bras, en forme de S allongé. Il s’articule en haut avec la. circonférence articulaire radiale et la trochlée humérale, et en bas avec l’épiphyse distale du. radius (mais pas directement avec les os du carpe).
24 lip 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.
o the ulna is a medial long bone, the longer of the two in the forearm. Proximally, it articulates with the capitulum and trochlea of the humerus; At the radial notch, it articulates with the head of radius
1 paź 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.
We examined 74 cadaveric specimens to evaluate the anatomy of the proximal ulna, especially the course of the posterior border, the point of varus angulation, the width of the shaft, and the relationship of the posterior border to the interosseous and anterior ones.
L’ulna est l’os situé du côté médial de l’avant-bras. Il a des relations en haut avec. l’humérus via l’incisure trochléaire (grande cavité sigmoïde), en-dehors avec le radius par l’incisure radiale (petite cavité sigmoïde), et en bas avec la région du poignet.
19 wrz 2021 · The ulna (plural: ulnae) is one of the two long bones of the forearm, located medially in the supinated anatomic position. It has a larger proximal end and tapers to a smaller distal end (opposite to the radius). Gross anatomy. Osteology. Prominent features of the ulna include:
