Coronoid

Coronoid is a term used in anatomy to describe a beak-like or crown-like structure. The term is derived from the Greek word "korone," meaning "crown." There are several structures in the human body that are referred to as coronoid. These include the coronoid process of the mandible, the coronoid process of the ulna, and the coronoid fossa.

Coronoid Process of the Mandible

The coronoid process of the mandible is a thin, triangular eminence, which is flattened from side to side and varies in shape and size. Its anterior border is convex and is continuous below with the anterior border of the ramus. Its posterior border is concave and forms the anterior boundary of the mandibular notch.

Coronoid Process of the Ulna

The coronoid process of the ulna is a triangular eminence projecting forward from the upper and front part of the ulna. Its base is continuous with the body of the bone, and of considerable strength. Its apex, directed upward, is pointed, slightly curved, and gives attachment to the brachialis.

Coronoid Fossa

The coronoid fossa is a depression located above the anterior portion of the trochlea of the humerus. It allows for the coronoid process of the ulna to move without restriction when the elbow is flexed.

See Also

• Mandible
• Ulna
• Humerus
• Anatomy

References

Coronoid Resources
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