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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 ...
Muscles of the neck seen from the front. The infrahyoid muscles are coloured in violet. The infrahyoid muscles, or strap muscles, are a group of four pairs of muscles in the anterior (frontal) part of the neck. [1] The four infrahyoid muscles are the sternohyoid, sternothyroid, thyrohyoid and omohyoid muscles. [1]
Anterior boundary. 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. Investing fascia covers the roof of the triangle while visceral ...
The suboccipital triangleis a region of the neckbounded by the following three muscles of the suboccipital group of muscles: Rectus capitis posterior major- above and medially. Obliquus capitis superior- above and laterally. Obliquus capitis inferior- below and laterally. (Rectus capitis posterior minor is also in this region but does not form ...
Anatomical terms of muscle. [edit on Wikidata] The omohyoid muscle is a muscle in the neck. It is one of the infrahyoid muscles. It consists of two bellies separated by an intermediate tendon. Its inferior belly is attached to the scapula; its superior belly is attached to the hyoid bone. Its intermediate tendon is anchored to the clavicle and ...
The carotid triangle ... The triangles of the neck. (Anterior triangles to the left; posterior triangles to the right. Suprahyoid labeled at left.) References
The posterior triangle is crossed, about 2.5 cm above the clavicle, by the inferior belly of the omohyoid muscle, which divides the space into two triangles: an upper or occipital triangle. a lower or subclavian triangle (or supraclavicular triangle)
Subclavian triangle. Side of neck, showing chief surface markings. (Nerves are yellow, arteries are red.) The subclavian triangle (or supraclavicular triangle, omoclavicular triangle, Ho's triangle), the smaller division of the posterior triangle, is bounded, above, by the inferior belly of the omohyoideus; below, by the clavicle; its base is ...