Zygomaticus Major and Minor Muscles
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Questions and Answers

What is the function of the Zygomaticus Major Muscle?

  • Expose the maxillary teeth
  • Drop the angle of the mouth
  • Draw the angle of the mouth upward and laterally (correct)
  • Elevate the upper lip

What is the origin of the Zygomaticus Major?

Zygomatic bone

Where does the Zygomaticus Major insert?

Angle of the mouth

What is the function of the Zygomaticus Minor Muscle?

<p>Elevate the upper lip and expose the maxillary teeth (C)</p> Signup and view all the answers

What is the origin of the Zygomaticus Minor?

<p>Lateral surface of the zygomatic bone, behind the zygomatic suture</p> Signup and view all the answers

Where does the Zygomaticus Minor insert?

<p>Muscular and skin fibers of the upper lip</p> Signup and view all the answers

Study Notes

Zygomaticus Major Muscle

  • Responsible for drawing the angle of the mouth upward and laterally, contributing to smiling.
  • Originates from the zygomatic bone, which is located in the cheek area.
  • Inserts at the angle of the mouth, facilitating the upward movement during facial expressions.

Zygomaticus Minor Muscle

  • Functions to elevate the upper lip, helping to expose the maxillary teeth.
  • Originates from the lateral surface of the zygomatic bone, found behind the zygomatic suture.
  • Inserts into the muscular and skin fibers of the upper lip, aiding in facial expressions related to smiling and lip elevation.

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Description

Explore the anatomy and functions of the zygomaticus major and minor muscles. This quiz covers their origins, insertions, and roles in facial expressions such as smiling and lip elevation.

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