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The triangles of the neck describe the divisions created by the major muscles in the region.. The side of the neck presents a somewhat quadrilateral outline, limited, above, by the lower border of the body of the mandible, and an imaginary line extending from the angle of the mandible to the mastoid process; below, by the upper border of the clavicle; in front, by the middle line of the neck ...
Symptoms include overuse muscle pain and fatigue along the back of the neck and reaching down to the mid-back, often starting with the upper trapezius muscle bellies between the shoulders and neck. Cervicogenic headache from the joints and muscle attachments at the top of the neck is common. [12] [13]
Sometimes a mass, such as a sternocleidomastoid tumor, is noted in the affected muscle. Congenital Muscular Torticollis is also defined by a fibrosis contracture of the sternocleidomastoid muscle on one side of the neck. [13] Congenital torticollis may not resolve on its own, and can result in rare complications including plagiocephaly. [17]
The platysma muscle is a broad sheet of muscle arising from the fascia covering the upper parts of the pectoralis major muscle and deltoid muscle. Its fibers cross the clavicle, and proceed obliquely upward and medially along the side of the neck. This leaves the inferior part of the neck in the midline deficient of significant muscle cover. [1]
Muscle memory helps you get back into shape faster after a break, makes complex movements feel more intuitive, and allows you to transition between similar activities easier (think: from tennis to ...
The inferior carotid triangle (or muscular triangle), is bounded, in front, by the median line of the neck from the hyoid bone to the sternum; behind, by the anterior margin of the sternocleidomastoid; above, by the superior belly of the omohyoid.
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Midline of the neck from chin to the jugular notch Posterior boundary: The anterior margin of sternocleidomastoid: Superior boundary (base) The lower border of the body of the mandible, and a line extending from the angle of the mandible to the mastoid process