Where is the insertion point of the temporalis muscle?

Where is the insertion point of the temporalis muscle?

• A. Coronoid process of the mandible passing under the zygomatic arch
• B. Condylar process of the mandible
• C. Angle of the mandible
• D. Mental foramen

Answer: (A)

The temporalis muscle inserts on the coronoid process of the mandible, with its tendon passing beneath the zygomatic arch from the temporal fossa. This placement lets the muscle elevate the mandible to close the jaw, and the posterior fibers can help retract it. The condylar process is the site of the jaw joint’s condyle, not the insertion for the temporalis. The angle of the mandible and the mental foramen relate to other structures and functions, not the temporalis attachment. So, the insertion point is the coronoid process of the mandible.

The temporalis muscle inserts on the coronoid process of the mandible, with its tendon passing beneath the zygomatic arch from the temporal fossa. This placement lets the muscle elevate the mandible to close the jaw, and the posterior fibers can help retract it. The condylar process is the site of the jaw joint’s condyle, not the insertion for the temporalis. The angle of the mandible and the mental foramen relate to other structures and functions, not the temporalis attachment. So, the insertion point is the coronoid process of the mandible.