HEAD NECK
TRIANGLES OF NECK
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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greater rhomboid muscle
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multifidus muscle
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latissimus dorsi muscle
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inferior posterior serratus muscle
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semispinal muscle
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Detailed explanation-1: -The serratus posterior inferior originates on the supraspinal ligament, and the spinous processes of the upper two to three lumbar vertebrae (L01–L03) and the lower two thoracic vertebrae (T11–T12). It inserts on the lower borders of ribs 9–12, and is innervated by intercostal nerves 9–12.
Detailed explanation-2: -The serratus anterior (SA) is a fan-shaped muscle that originates on the superolateral surfaces of the first to eighth or ninth ribs at the lateral wall of the thorax and inserts along the superior angle, medial border, and inferior angle of the scapula.
Detailed explanation-3: -Origin. serratus posterior superior. Insertion. It inserts into ribs. Nerve. Serratus posterior superior innervated by ventral rami of intercoastal nerves of T1-T5.