What's a Sigmoid Notch?
The Sigmoid Notch (Also Referred to as the Trochlear Groove or Semilunar Notch) Is a Cup-Like Depression Within the Proximal Ulna Formed from the Olecranon and...
The sigmoid notch (also referred to as the trochlear groove or semilunar notch) is a cup-like depression within the proximal ulna formed from the olecranon and the coronoid process (Fig. 2), and it is covered with articular cartilage in an arc of 190 degrees when viewed sagittally.
What is a sigmoid notch?
Anatomical terms of bone
The mandibular notch, also known as the sigmoid notch, is a groove in the ramus of the mandible. It is the gap between the coronoid process anteriorly and the condyloid process posteriorly.
In which bone sigmoid notch is?
Complete answer: The sigmoid notch is present in the ulna and is commonly called a radial notch. This notch is present on the head of the Ulna forming the distal radioulnar joint.
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