anatomy need to know Flashcards
What nerve is the mental nerve a branch of?
mandibular branch of the inferior alveolar nerve
What is the origin and insertion of the masseter
origin - zygomatic arch
insertion - lateral surface and angle of the mandible
What is the function of the masseter ?
Elevates the mandible
What is the origin and insertion of the temporalis?
origin - floor of the temporal fossa
insertions - coronoid process and anterior border of the ramus
What is the function of the temporalis?
Elevates and retracts the mandible
What is the origin of the lateral pterygoid ?
from the lateral surface of the lateral pterygoid plate
What is the insertion for the anterior belly of the lateral pterygoid?
the anterior border of the condyle
What is the insertion for the superior belly of the lateral ptyergoid?
the anterior fibres of the intra-articular disc
What is the overall function of the lateral ptyerygoid?
protrudes and laterally deviates the mandible
What function does the inferior head of the lateral pterygoid have?
depresses the mandible
What is the insertion of the medial pterygoid?
medial surface of the angle of the mandible
What is the function of the medial pterygoid?
Elevates and assists in protrusion of the mandible
What is the origin of the deep head of the medial pterygoid?
medial surface of the lateral pterygoid plate
What is the origin of the superficial head of the medial pterygoid muscle?
the maxillary tuberosity
