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Masseter
The left masseter muscle (red highlight), partially covered by superficial muscles such as the platysma muscle (below) and both the zygomaticus major and minor muscles
Details
Origin
Zygomatic arch and maxillary process of zygomatic bone
Insertion
Angle surface of ramus of mandible, coronoid process
Artery
Masseteric artery
Nerve
Mandibular nerve (V3)
Actions
Elevation (as in closing of the mouth) and protrusion of mandible
Identifiers
Latin
musculas masseter
MeSH
D008406
TA98
A04.1.04.002
TA2
2105
FMA
48996
Anatomical terms of muscle
[edit on Wikidata]
In anatomy, the masseter[help 1] is one of the muscles of mastication. Found only in mammals, it is particularly powerful in herbivores to facilitate chewing of plant matter.[5] The most obvious muscle of mastication is the masseter muscle, since it is the most superficial and one of the strongest.
^Elsevier, Dorland's Illustrated Medical Dictionary, Elsevier.
^Merriam-Webster, Merriam-Webster's Medical Dictionary, Merriam-Webster.
^Houghton Mifflin Harcourt, The American Heritage Dictionary of the English Language, Houghton Mifflin Harcourt, archived from the original on 2015-09-25, retrieved 2015-09-27.
^Wolters Kluwer, Stedman's Medical Dictionary, Wolters Kluwer.
^Romer, Alfred Sherwood; Parsons, Thomas S. (1977). The Vertebrate Body. Philadelphia, PA: Holt-Saunders International. p. 283. ISBN 0-03-910284-X.
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The most obvious muscle of mastication is the massetermuscle, since it is the most superficial and one of the strongest. The masseter is a thick, somewhat...
the result of muscle inflammation (immunity-related swelling), muscle hyperplasia, muscle hypertrophy, muscle pseudohypertrophy (muscle atrophy with infiltration...
foramen. The insertion joins the massetermuscle to form a common tendinous sling which allows the medial pterygoid and masseter to be powerful elevators of...
at the chin while the mouth is held slightly open. In response, the massetermuscles will jerk the mandible upwards. Normally this reflex is absent or very...
trigeminal nerve. Lower part of the temporalis muscle and massetermuscle (origin of massetermuscle:lower margin of the inner surface of zygomatic bone...
zygomasseteric structure) in rodents is the anatomical arrangement of the massetermuscle of the jaw and the zygomatic arch of the skull. The anteroposterior...
kidney damage. Likewise, treating the massetermuscle may damage the salivary glands superficial to this muscle. Furthermore, some experts believe trigger...
passes through the mandibular notch to reach massetermuscle. It provides motor innervation the massetermuscle, and sensory innervation to the temporomandibular...
may be asymmetrical. It is superficial to the massetermuscle, partially overlying it. The risorius muscle draws the angle of the mouth lateral-ward. It...
primarily be caused by a wide mandibular bone or large massetermuscle. A large massetermuscle can be reduced in apparent size with the use of botox injections...
Among rodents, the massetermuscle plays a key role in chewing, making up 60% – 80% of the total muscle mass among masticatory muscles and reflects rodents'...
temporalis, masseter, and pterygoid muscles. The disease is usually bilateral. MMM is caused by the presence of 2M fibers in the muscles of the jaw. 2M...
Hypertrophy of the muscles of mastication (increase in the size of the muscles that move the jaw), particularly the massetermuscle. Tenderness, pain or...
of the lateral massetermuscle along the side of the rostrum. Unlike hystricomorphous and myomorphous rodents, the medial massetermuscle does not pass...
(discounting the ossicles of the middle ear). Massetermuscle – In human anatomy, the masseter is one of the muscles of mastication. Found only in mammals, it...
The platysma muscle is a superficial muscle of the human neck that overlaps the sternocleidomastoid. It covers the anterior surface of the neck superficially...
posterior border of the angle of the mandible, between the massetermuscle and medial pterygoid muscle. The stylomandibular ligament limits mandibular movements...
developed masseter (cheek) muscle that exhibits a high tensile ability. The massetermuscle has been shown to insert into the pectoralis muscles, allowing...
specialization of the massetermuscle has evolved.[citation needed] In the protrogomorphous condition, the medial massetermuscle does not pass through...
which is lateral to the superior pharyngeal constrictor muscle and medial to the massetermuscle. This space is divided by the styloid process into anterior...
Skeletal muscle (commonly referred to as muscle) is one of the three types of vertebrate muscle tissue, the other being cardiac muscle and smooth muscle. They...
lateral massetermuscles are displaced forward, making them adept at gnawing. As in the hystricognathous rodents, the medial massetermuscle goes through...
surface of the massetermuscle. Anteriorly, the fascia is said to overlie the buccal fat pad (that in turn overlies the buccinator muscle) before blending...
the massetermuscle posteriorly, the zygomatic process of the maxilla and the zygomaticus muscles superiorly, the depressor anguli oris muscle and the...
specific cases to last 7–11 days. When injecting the massetermuscle of the jaw, loss of muscle function can result in a loss or reduction of power to...
myokine that is produced and released by myocytes and acts on muscle cells to inhibit muscle growth. Myostatin is a secreted growth differentiation factor...
joint provided more room for the temporalis muscle, it also posed a problem for the massetermuscle. The masseter, which extends from the zygomatic arch to...
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