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What originates on the zygomatic arch and inserts on the angle of the mandible?
The masseter muscle originates on the zygomatic arch and inserts on the angle of the mandible. It is responsible for elevating the mandible during jaw closure and is one of the key muscles involved in chewing.
What is the ascending part of the mandible?
The ascending part of the mandible is the vertical portion of the mandible bone that extends from the mandibular angle to the coronoid process. It forms the posterior border of the ramus of the mandible and provides attachment for muscles involved in chewing and jaw movement.
What is the muscle located at the angle of the jaw used for chewing?
masseter
Where does the masseter temporalis and pterygoids all insert?
The masseter inserts on the mandible, specifically on the angle and ramus. The temporalis inserts on the coronoid process of the mandible. The lateral pterygoid inserts on the condyloid process of the mandible, while the medial pterygoid inserts on the angle of the mandible.
Define angle of mandible?
Depends... On a male, 90 degrees. On a female, 120 degrees.
What is angle of pull?
angle of pull is the angle between muscle insertion and the bone on which the muscle inserts
What are the landmark of mandible?
- head or condyle - mandibular notch or condular notch - neck ~just under the condyle - ramus - body - angle - mental foramen - protuberance~ the chin - alveolar processes of the mandible - oblique line
A muscle slanted at an angle?
oblique
What is the term for a muscle slanted at an angle?
Oblique
What type of muscle contraction will shorten a muscle and decrease the angle between two bones?
Concentric muscle contraction will shorten a muscle and decrease the angle between two bones. This type of contraction involves the muscle generating force as it shortens to move a body part.
In Bennett movement there is movement of which condyle?
the movement of mandible toward lateral causes movement in both right and left condyles. For example, if one moves one's mandible (lower jaw) toward right, the right conlye moves laterally and the left goes downward, forward, and medially, so the left condyle is defined as nonworking and the right condyle as working. the movement of nonworking condyle,in this example left condyle, forms an angle between sagittal plan and direction of nonworking condyle, which is called Bennett angle.
The term in a muscle name means slanted or at an angle?
oblique
