・「筋突起よりも厚みがある。」（Wikipedia）
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筋突起 |
下顎骨（全体） |
下顎枝 |
下顎骨（内側面） |
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頭蓋骨（側面） |
筋の起始・停止 |
外側翼突筋 |
顎関節 |
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「Wikipedia」では以下のように解説している。
The condyloid process or condylar process is the process on the human mandible and some other species' mandibles that ends in a condyle, the mandibular condyle. It is thicker than the coronoid process of the mandible and consists of two portions: the condyle and the constricted portion which supports it, the neck.
【Condyle】
The condyle presents an articular surface for articulation with the articular disk of the temporomandibular joint; it is convex from before backward and from side to side, and extends farther on the posterior than on the anterior surface.
Its long axis is directed medialward and slightly backward, and if prolonged to the middle line will meet that of the opposite condyle near the anterior margin of the foramen magnum.
At the lateral extremity of the condyle is a small tubercle for the attachment of the temporomandibular ligament.
The articular surface of the condyle is covered by fibrous tissue, and interfaces with an articular disk (or meniscus) of avascular, non-innervated fibrous tissue (collagen, fibroblasts). When the mouth is closed the meniscus is bordered medially and superiorly by the glenoid fossa of the petrous portion of the temporal bone. When the mouth is opened maximally, the meniscus is distracted anteriorly and inferiorly along the slope of the inferior portion of the temporal bone towards the tubercle, or articular eminence, in order to remain interposed between the condyle and the temporal bone in all jaw positions.
【Neck】
The neck is flattened from before backward, and strengthened by ridges which descend from the forepart and sides of the condyle.
Its posterior surface is convex; its anterior surface has a depression for the attachment of the Pterygoideus externus (lateral pterygoid muscle).
【 語 句 】
・articular disk：関節円板 ・temporomandibular joint：顎関節 ・convex：凸状の ・axis：軸 ・foramen magnum：大後頭孔 ・extremity：先端、末端 ・temporomandibular ligament：外側靭帯？ ・avascular：無血管性の ・meniscus：関節円板？ ・glenoid fossa：関節窩 ・petrous：錐体部の ・temporal bone：側頭骨 ・distract：そらす ・interpose：間にはさむ ・ridge：隆起（線）
・lateral pterygoid muscle：外側翼突筋
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