zygomaticus muscles definition
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Zygomaticus major muscle The zygomaticus major is a muscle of the human body. It is a muscle of facial expression which draws the angle of the mouth superiorly and posteriorly (smile).he zygomaticus major is a muscle of the human body. It is a muscle of facial expression which draws the angle of the mouth superiorly and posteriorly (smile).
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Pterygoid muscles Function. The pterygoid muscles are muscles of mastication and serve the movement of the temporomandibular joint. The contraction of the medial pterygoid elevates the mandible (jaw closure) and moves it forward (protrusion).unction. The pterygoid muscles are muscles of mastication and serve the movement of the temporomandibular joint. The contraction of the medial pterygoid elevates the mandible (jaw closure) and moves it forward (protrusion).
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- zygomaticus major (muscle). Definitions: 1. facial muscle of anterior cheek extending to upper lip; origin, zygomatic bone anterior to temporozygomatic suture; insertion, muscles at angle of mouth; action, draws upper lip upward and laterally; nerve supply, facial.efinitions: 1. facial muscle of anterior cheek extending to upper lip; origin, zygomatic bone anterior to temporozygomatic suture; insertion, muscles at angle of mouth; action, draws upper lip upward and laterally; nerve supply, facial.
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zygomaticus major muscle zy·go·mat·i·cus ma·jor mus·cle. Facial muscle of anterior cheek extending to upper lip; origin, zygomatic bone anterior to temporozygomatic suture; insertion, muscles at angle of mouth; action, draws upper lip upward and laterally; nerve supply, facial.Synonym(s): musculus zygomaticus major [TA] , greater zygomatic muscle, musculus zygomaticus.y·go·mat·i·cus ma·jor mus·cle. Facial muscle of anterior cheek extending to upper lip; origin, zygomatic bone anterior to temporozygomatic suture; insertion, muscles at angle of mouth; action, draws upper lip upward and laterally; nerve supply, facial.
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zygomatic bone facial b's the bones that form the skeleton of the face, including the hyoid, palatine, and zygomatic bones, the mandible, and the maxilla. Some authorities include the lacrimal bones, nasal bones, inferior nasal concha, and vomer and exclude the hyoid bone. See anatomic Table of Bones in the Appendices.
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- zygomatic bone. the bone forming the hard part of the cheek and the lower, lateral portion of the rim of the orbit. See also Table 10. zygomatic gland. a salivary gland, formerly known as the orbital or upper molar gland, best developed in carnivores; located above the zygomatic arch and below the eye.
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Zygomaticus Major Action: Draws the angle of the mouth upward and outward, such as when laughing or smiling. The zygomaticus major are muscles located in the region of the of the head, neck, or face taught as part of many courses in Indian Head Massage.
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What Are the Functions of the Zygomatic Bones? Quick Answer. According to Kenhub, the skull's two zygomatic bones, also known as the zygoma, support facial tissue, pronounce the shape of the cheeks and form the lower, outer portion of the orbital socket. The zygomatic bones house the insertion points for the masseter muscles, which are one of the four types of muscles required for chewing.
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The Muscles of Mastication The muscles of mastication are a group of muscles associated with movements of the jaw (temporomandibular joint).
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- of, relating to, or situated near the zygoma. noun. 2. zygomatic bone. Origin of zygomatic. 1700-1710. 1700-10; zygomat- (combining form of zygoma) + -ic. Related forms.
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Zygomaticus major muscle The zygomaticus major is a muscle of the human body. It is a muscle of facial expression which draws the angle of the mouth superiorly and posteriorly (smile).
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Zygomaticus Major Summary Information: Zygomaticus Major. Zygomaticus Major: The zygomaticus major is a paired muscle located in the face in the cheek area. The zygomaticus major originates on the zygomatic bone and inserts on the modiolus of the mouth. The zygomaticus major lifts and pulls back the mouth in the smiling expression. It is innervated by the facial nerve.
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Muscles of Mastication (Chewing) The Temporalis Muscles are one of three muscles making up the muscles of Mastication. These muscles are responsible for chewing. The Temporalis muscle is the muscle which assists us to close our mouth, grind our teeth and move our mouth from side to side when we are chewing.
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The Muscles of Mastication The entirety of the muscle lies superficially to the pterygoids and temporalis, covering them. 1  Attachments: The superficial part originates from maxillary process of the zygomatic bone. 2  Actions: Elevates the mandible, closing the mouth. 3  Innervation: Mandibular nerve (V 3).
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Definitions &Translations Definitions for -zygous. -zygous(Suffix) Having or originating from a specified state as a result of conditions in the zygote stage of development. -zygous(Suffix) Having a specified state of allele pairs in the nucleus.
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- 'zygomaticus muscle' also found in translations in French-English dictionary. muscle zygomatique. muscle zygomatique. n. zygomaticus muscle. [Med.]. To add entries to your own vocabulary, become a member of Reverso community or login if you are already a member.zygomaticus muscle' also found in translations in French-English dictionary. muscle zygomatique. muscle zygomatique. n. zygomaticus muscle. [Med.]. To add entries to your own vocabulary, become a member of Reverso community or login if you are already a member.
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Stylopharyngeus muscle The stylopharyngeus is a long, slender muscle, cylindrical above, flattened below. It arises from the medial side of the base of the temporal styloid process, passes downward along the side of the pharynx between the superior pharyngeal constrictor and the middle pharyngeal constrictor, and spreads out beneath the mucous membrane.
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Zygomaticus major The zygomaticus major muscle is also known as musculus zygomaticus major and the greater zygomatic muscle, as well as musculus zygomaticus. The zygomaticus major muscle receives nerves from cranial nerve VII.he zygomaticus major muscle is also known as musculus zygomaticus major and the greater zygomatic muscle, as well as musculus zygomaticus. The zygomaticus major muscle receives nerves from cranial nerve VII.
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FACIAL BONES ANATOMY The mandible is the largest of all the facial bones and is the only bone of the facial bones that has the ability of movement. The mandible is able to create movement such as this through two joints which attach it to the skull known as temporomandibular joints.he lateral ridge of the orbit is also formed in part by the zygomatic bones. The zygomatic nerves and vessels are permitted passage through the zygomaticofacial foramen, which is on the surface of the bone. The lacrimal bones are thin bones that form the anterior portion of the medial walls of the individual orbits.
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Pterygoid muscles 1 Medial pterygoid muscle: originates from the pterygoid fossa and pterygoid process of the sphenoid. 2  Distally it inserts on the pterygoid tuberosity on the inner surface of the mandibular angle. 3  Along with the masseter, this muscle forms a sling around the mandible.unction. The pterygoid muscles are muscles of mastication and serve the movement of the temporomandibular joint. The contraction of the medial pterygoid elevates the mandible (jaw closure) and moves it forward (protrusion).
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Guide to the Zaire crisis: The difference between a Hutu and a Tutsi The antagonism between Hutus and Tutsis in Rwanda and Burundi is not a tribal conflict. It is not, properly speaking, an ethnic conflict. By all the most common definitions, Hutus and Tutsis are the same people, which makes their violent history even more tragically incomprehensible to outsiders.
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- zy·go·ma. n. pl. zy·go·ma·ta (-mə-tə) or zy·go·mas. 1. The zygomatic bone.2. The zygomatic arch.3.The zygomatic process.y·go·ma. n. pl. zy·go·ma·ta (-mə-tə) or zy·go·mas. 1. The zygomatic bone. 2. The zygomatic arch. 3. The zygomatic process.
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Zygomatic bone Anatomical terms of bone. In the human skull, the zygomatic bone (cheekbone or malar bone) is a paired bone which articulates with the maxilla, the temporal bone, the sphenoid bone and the frontal bone.
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- The Muscles of Mastication more commonly known as the muscles of the jaw consist of three muscles the Temporalis, Masseter and Pterygoid Muscles which work together to move the mandible at the Temporomandibular Joint.
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What is the Zygomaticus? Top 10 unbelievable historical concurrencies. The zygomaticus is a set of muscles found in the cheekbone that serves to pull the facial expression upward, as in smiling, laughing, or when one is wincing. There are two types of this muscle: major and minor. Both muscles stretch downward from the cheekbone to different areas of the mouth. These muscles are also one of the areas through which the facial nerve is innervated. The zygomaticus major extends from the top of the cheekbone, also called the zygomatic or malar bone, to the corners of the mouth.