What Is The Origin Of The Masseter Muscle
Camila Farah
Is a thick conical muscle which arises by two heads i e.
Upper and lower heads. What is the origin of the masseter muscle. What kind of muscle is the obicularis oculi or orbicularis oris muscle in terms of action. Attachments of masseter muscle.
What muscle originates on the temporal fossa. What is the action of the risorius. The temporalis medial pterygoid and lateral pterygoid. The origin of the masseter muscle is the zygomatic arch.
It is one of the masticatory muscles a group of muscles which also includes the temporal muscle lateral pterygoid muscle and medial pterygoid muscle. The masseter is primarily responsible for the elevation of the mandible and some protraction of the mandible. During chewing the masseter is assisted by three other muscles. It consists of a superficial and a deep part.
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Lateral surface of angle and ramus of mandible. What kind of muscle is the orbicularis oculi orbicularis oris muscle in terms of action. Masseter muscle is a powerful superficial quadrangular muscle originating from the zygomatic arch and inserts along the angle and lateral surface of the mandibular ramus. Zygomatic arch medial surface and inferior border.
Masseter muscle is a paired strong thick and rectangular muscle that is originating from the zygomatic arch and extends down to the mandibular angle. Abducts corner of mouth. The left masseter muscle red highlight shown partially covered by superficial muscles such as the platysma muscle the zygomaticus major muscle and the zygomaticus minor muscle. What is the action of the risorius.
The origin of the masseter is the zygomatic arch and maxilla and the insertion is the coronoid process mandibular ramus and angle region fig. Abducts corner of mouth. The four muscles work together to pull the jaw down and back up again. This muscle has a superficial and deep belly.
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The zygomatic arch also called the cheek bone.
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