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1. the uppermost portion of the sternum; called also manubrium sterni.
2. the largest process of the malleus, giving attachment to the tendon of the tensor muscle of the tympanum; called also manubrium mallei.
ma·nu·bri·a(mă-nū'brē-ŭm, -ă), [TA]
The portion of the sternum or of the malleus that resembles the handle of a sword or hammer.
manubrium/ma·nu·bri·um/ (mah-noo´bre-um) pl. manu´bria [L.] a handle-like structure or part, such as the manubrium of the sternum.
manubrium mal´lei , manubrium of malleus the longest process of the malleus; it is attached to the middle layer of the tympanic membrane and has the tensor tympani muscle attached to it.
manubrium ster´ni , manubrium of sternum the cranial part of the sternum, articulating with the clavicles and first two pairs of ribs.
n. pl. manu·bria (-brē-ə)
A body part or process shaped like a handle, especially:
a. The broad upper division of the sternum with which the clavicle and first two ribs articulate. Also called episternum, presternum.
b. The long tapering process of the malleus attached to the central portion of the eardrum.
Etymology: L, handle
the most anterior of the three bones of the sternum, presenting a broad quadrangular shape that narrows caudally at its articulation with the superior end of the body of the sternum. The pectoralis major and the sternocleidomastoideus are attached to the manubrium. Compare xiphoid process. manubrial, adj.
ma·nu·bri·um, pl. manubria (mă-nū'brē-ŭm, -ă) [TA]
The portion of the sternum or of the malleus that represents the handle.
manubriumThe shield-shaped upper part of the breastbone (STERNUM). The inner ends of the collar bones (clavicles) and of the first and second ribs articulate with the manubrium.
- any handle-like elongated process.
- the tubular mouth of a jellyfish.
- the anterior segment of the sternum in mammals.
- the first segment of the springing organ in COLLEMBOLA.
pl. manubria [L.]
1. the most cranial portion of the sternum.
2. the largest process of the malleus, giving attachment to the tendon of the tensor muscle of the tympanum.