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medial pterygoid plate การใช้

ประโยคมือถือ
  • The posterior border presents a deep groove, the edges of which are serrated for articulation with the medial pterygoid plate of the sphenoid.
  • Each process consists of a medial pterygoid plate and a lateral pterygoid plate, the latter of which serve as the origins of the sphenoid and maxillary bones.
  • On either side of the rostrum is a projecting lamina, the vaginal process, directed medialward from the base of the medial pterygoid plate, with which it will be described.
  • The cartilage lies in a groove between the petrous part of the temporal bone and the great wing of the sphenoid; this groove ends opposite the middle of the medial pterygoid plate.
  • It arises by a flat lamella from the scaphoid fossa at the base of the medial pterygoid plate, from the spina angularis of the sphenoid and from the lateral wall of the cartilage of the auditory tube.
  • Descending vertically between the medial pterygoid plate and the medial pterygoid muscle, it ends in a tendon which winds around the pterygoid hamulus, being retained in this situation by some of the fibers of origin of the medial pterygoid muscle.
  • Each medial pterygoid plate ( except its hamulus ) is ossified in membrane, and its center probably appears about the ninth or tenth week; the hamulus becomes chondrified during the third month, and almost at once ossifies ( Fawcett ).