trochlear notch

incisura semilunaris ulnae

The semilunar notch of the ulna (trochlear notch of ulna, greater sigmoid cavity) is a large depression, formed by the olecranon and the coronoid process, and serving for articulation with the trochlea of the humerus. About the middle of either side of this notch is an indentation, which contracts it somewhat, and indicates the junction of the olecranon and the coronoid process. The notch is concave from above downward, and divided into a medial and a lateral portion by a smooth ridge running from the summit of the olecranon to the tip of the coronoid process. The medial portion is the larger, and is slightly concave transversely; the lateral is convex above, slightly concave below.

Tipo Joint
Estructura principal zone of long bone
Nombre latino incisura semilunaris ulnae
FMA ID 23619

Preguntas frecuentes

What is the trochlear notch?
The semilunar notch of the ulna (trochlear notch of ulna, greater sigmoid cavity) is a large depression, formed by the olecranon and the coronoid process, and serving for articulation with the trochlea of the humerus. About the middle of either side of this notch is an indentation, which contracts i
What is the Latin name for the trochlear notch?
The Latin name for the trochlear notch is incisura semilunaris ulnae.

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