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Title: Manubrium  
Author: World Heritage Encyclopedia
Language: English
Subject: Human sternum, Axial skeleton, List of subjects in Gray's Anatomy: II. Osteology, Robert Wiedersheim, Investing layer of deep cervical fascia
Publisher: World Heritage Encyclopedia


For the manubrium of the eardrum, see malleus. For the manubrium of the jellyfish, see jellyfish.
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Position of the manubrium (shown in red).
Sternoclavicular articulation. Anterior view. From top to bottom, clavicles, first ribs and manubrium.
Latin Manubrium sterni
Gray's subject #27 120
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FMA Template:FMA

The manubrium (from Latin manubrĭum, "a handle") or manubrium sterni is the broad, upper part of the sternum. Located ventrally with a quadrangular shape, wider superiorly and narrower inferiorly, it articulates with the clavicles and the cartilages of the first pair of ribs.



The superior border is the thickest and presents at its center the jugular or presternal notch; on either side of the notch is an oval articular surface, directed upward, backward, and lateralward, for articulation with the sternal end of the clavicle. The inferior border, oval and rough, is covered in a fresh state with a thin layer of cartilage for articulation with the body. The lateral borders are each marked above by a depression for the first costal cartilage, and below by a small facet, which, with a similar facet on the upper angle of the body, forms a notch for the reception of the costal cartilage of the second rib. Between the depression for the first costal cartilage and the demi-facet for the second is a narrow, curved edge, which slopes from above downward and medialward.

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  • 18:st-0208

This article incorporates text from a public domain edition of Gray's Anatomy.

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