Zygomaticus Major Origin


The zygomaticus major muscle starts at the cheekbone and extends to the corner of the mouth. This muscle causes the corners of a person's mouth to rise when they smile. Variations of the zygomaticus major muscle cause dimples to form.

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The zygomaticus major is a muscle of the human body It is a muscle of facial expression which draws the angle of the mouth superiorly and posteriorly to allow one to smile Like all muscles of facial expression the zygomatic major is innervated by the facial nerve more specifically the buccal and zygomatic branches of the facial nerve

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The zygomaticus major muscle is a muscle that controls facial expression drawing the mouths angle upward and outward The zygomaticus major muscle starts at the cheekbone and extends to the

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The zygomaticus major muscles are located in the cheek and extend from the ears across the face almost as far as the nearest corner of the mouth The points of origin and insertion and the actions of the zygomaticus major muscle

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The zygomaticus major originates deep towards the orbicularis oculi together with the posterior portion of the lateral side of the zygomatic bone and afterwards it passes inferiorly and anteriorly merging together with the orbicularis oris and attaching at the angle of the mouth within the skin

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The zygomaticus major muscle also major zygomatic muscle or simply zygomaticus major latin musculus zygomaticus major is a paired facial muscle that extends between the zygomatic bone and the corner of the mouth It is one of the two zygomatic muscles major and minor that lie next to each other in the cheek area

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ORIGIN Anterior surface of zygomatic bone INSERTION Modiolus at angle of mouth ACTION Elevates and draws angle of mouth laterally NERVE Buccal branch of facial nerve VII

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Zygomaticus comes from the Greek zygon meaning yoke The term major comes from the Latin maior meaning greater As is typical in anatomical terminology this comparative reference clues you into the fact that this is a larger version of a similar placed smaller muscle

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