symphysis menti การใช้

• It lies below the body of the mandible, and extends, in a curved form, from the mastoid process to the symphysis menti.
• It supplies the surrounding muscles, and anastomoses with the sublingual artery and with the mylohyoid branch of the inferior alveolar artery; at the symphysis menti it turns upward over the border of the mandible.
• Fibres at the front of the muscle from the left and right sides intermingle together below and behind the symphysis menti; the junction where the two lateral halves of the mandible are fused at an early period of life.
• The dorsal end of each cartilage is connected with the ear-capsule and is ossified to form the malleus; the ventral ends meet each other in the region of the symphysis menti, and are usually regarded as undergoing ossification to form that portion of the mandible which contains the incisor teeth.