QuestionSBA
QuestionChoice
Incorrect. The mylohyoid muscle originates from the mylohyoid line of the mandible. It inserts onto the body of the hyoid, aiding depression of the mandible.
10009044
e
Mylohyoid
QuestionChoice
Incorrect. The lateral pterygoid muscle originates from the lateral surface of the lateral pterygoid plate and infratemporal crest of the greater wing of sphenoid. It inserts onto the pterygoid fovea on the anterior neck of the mandible and temporomandibular joint capsule, acting primarily to depress and protrude the mandible.
10009041
b
Lateral pterygoid
QuestionChoice
Incorrect. The masseter muscle originates from the zygomatic arch, formed by the zygomatic process of the temporal bone laterally and the temporal process of the zygomatic bone medially. It inserts onto the lateral surface of the mandible and coronoid process, acting to elevate the mandible.
10009042
c
Masseter
QuestionChoice
Correct. The medial pterygoid muscle originates from the medial surface of the lateral pterygoid plate, pyramidal process of the palatine bone and the maxillary tuberosity. It inserts onto the medial surface of the mandible, acting primarily to elevate and protrude the mandible.
10009040
a
Medial pterygoid
QuestionChoice
Incorrect. The temporalis muscle originates primarily from the temporal fossa, consisting of the squamous temporal bone. It inserts onto the coronoid process and ramus of the mandible, acting to elevate and retract the mandible. It also produces side to side movements of the mandible.
10009043
d
Temporalis
Concept
Chapter
2693
5299
Muscles of mastication
Topic
201
Head and neck anatomy
14355
Picture
1715
10 - Muscles of mastication (right medial pterygoid).png
images/v4fdp1m21682950572453.jpg
images/v4fdp1m21682950572453_256.jpg
images/v4fdp1m21682950572453_512.jpg
pCgKDQLmh4d1+FeYiIhXZwdlkGAX
Topic
201
Head and neck anatomy
Identify the labelled structure.

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a