manubrium sterni การใช้

• The sternal head is a round fasciculus, tendinous in front, fleshy behind, arising from the upper part of the front of the manubrium sterni.
• The muscle arises from the posterior border of the medial end of the clavicle, the posterior sternoclavicular ligament, and the upper and posterior part of the manubrium sterni.
• The arch of the aorta forms two curvatures : one with its convexity upward, the other with its convexity forward and to the left . Its upper border is usually about 2.5 cm . below the superior border to the manubrium sterni.
• It arises from the posterior surface of the manubrium sterni, below the origin of the Sternohyoideus, and from the edge of the cartilage of the first rib, and sometimes that of the second rib, it is inserted into the oblique line on the lamina of the thyroid cartilage.