عضلة قصية ترقوية حلمية
| Sternocleidomastoid | |
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| عضلات الرقبة، وتظهر العضلة القصية الترقوية الحلمية مظللة. | |
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| The sternocleidomastoid (right muscle shown) can be clearly observed when rotating the head. | |
| Latin | Musculus sternocleidomastoideus |
| Origin | Manubrium and medial portion of the clavicle |
| Insertion | Mastoid process of the temporal bone, superior nuchal line |
| الشريان | الشريان القذالي والشريان الدرقي العلوي |
| العصب | الحركة: spinal accessory nerve الحس: cervical plexus Proprioceptive: C2,C3 of ventral rami |
| Actions | Unilaterally: contralateral cervical rotation, ipsilateral cervical flexion
Bilaterally: cervical flexion, elevation of sternum and assists in forced inhalation. |
العضلة القصية الترقوية الحلمية sternocleidomastoid muscle هي واحدة من أكبر وأقرب العضلات الرقبية للسطح. الأفعال الرئيسية للعضلة هي دوران الرأس إلى الجانب اللقاء و الرقبة. القصية الترقوية الحلمية يحسسها accessory nerve.
وتحمل اسم القصية الترقوية الحلمية لأنها تنبع من مقبض عظم القص (sterno-) and the clavicle (cleido-), ولها insertion عند المدخل الخشائي في العظم الصدغي للجمجمة.
البنية
The sternocleidomastoid muscle originates from two locations: the manubrium of the sternum and the clavicle. It travels obliquely across the side of the neck and inserts at the mastoid process of the temporal bone of the skull. The sternocleidomastoid is thick and narrow at its centre, and broader and thinner at either end.
The sternal head is a round fasciculus, tendinous in front, fleshy behind, arising from the upper part of the front of the manubrium sterni. It travels superiorly, laterally, and posteriorly.
The clavicular head is composed of fleshy and aponeurotic fibers, arises from the upper, frontal surface of the medial third of the clavicle; it is directed almost vertically upward.
The two heads are separated from one another at their origins by a triangular interval (supraclavicular fossa) but gradually blend, below the middle of the neck, into a thick, rounded muscle which is inserted, by a strong tendon, into the lateral surface of the mastoid process, from its apex to its superior border, and by a thin aponeurosis into the lateral half of the superior nuchal line of the occipital bone.
الهامش
'هذه الموضوعة تَعتمد على مَواد وَمعلومات ذات ملكية عامة، من للطبعة العِشرين لكتاب تشريح گرايز لعام 1918. .
هذا الموضوع يستخدم مصطلحات التشريح؛ لنظرة عامة، انظر مصطلحات التشريح.
