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Muscle attachment sites Tendon - attachment site to bones Origin - relatively fixed during muscular contraction (generally a more proximal location) Insertion - moveable during the contraction Belly - fleshy portion of the muscle in between attachment sites Connective tissues Ligament - fibrous tissue that connects bones to other bones
1 paź 2024 · The muscles of mastication are associated with movements of the jaw (temporomandibular joint). There are four muscles: Masseter; Temporalis; Medial pterygoid; Lateral pterygoid; The muscles of mastication develop from the first pharyngeal arch. They are therefore innervated by a branch of the trigeminal nerve (CN V), the mandibular nerve.
2 lis 2023 · The masticatory muscles attach to the mandible, and thus produce movements of the lower jaw at the temporomandibular joint (TMJ) to enable functions such as chewing and grinding. These movements include: Protrusion (protraction), which moves the mandible forwards. Retraction, which pulls the mandible backwards.
Muscles that Move the Thigh and Leg—Anterior and Medial Aspects. Muscle Origin Insertion Action Iliopsoas— iliacus and psoas major. Iliacus—iliac fossa and crest, lateral sacrum Psoas major—transverse processes, bodies, and discs of T 12 and lumber vertebrae. On and just below less trochanter of femur
30 paź 2023 · Validated and aligned with popular anatomy textbooks, these muscle cheat sheets are packed with high-quality illustrations. You’ll be able to clearly visualize muscle locations and understand how they relate to surrounding structures.
This cheat sheet provides information on the muscles of the head and neck involved in facial expression, mastication, and the middle ear. It lists the origin, insertion, innervation, and function of each muscle in the epicranial, auricular, orbital, nasal, and oral groups.
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