arcuate ligament n.
A thickening of the fascia of the lumbar quadrate muscle, between the transverse process of the first lumbar vertebra and the twelfth rib on either side, that gives attachment to a portion of the diaphragm; lateral arcuate ligament.
A tendinous thickening of the fascia of the greater psoas muscle that extends from the body of the first lumbar vertebra to its transverse process on either side and from which a portion of the diaphragm arises; medial arcuate ligament.
A tendinous connection between the crura of the diaphragm that arches in front on the aorta; median arcuate ligament.
- Arcuate nuclei
arcuate nuclei arcuate nuclei pl.n. A variable assembly of small-cell groups on the ventral and medial aspects of the pyramid in the medulla oblongata.
- Arcuate veins of kidney
arcuate veins of kidney arcuate veins of kidney pl.n. The veins that parallel the arcuate arteries, receive blood from the interlobular veins and the rectal venules, and terminate in the interlobar veins.
- Arcuate zone
arcuate zone arcuate zone n. The inner third of the basilar membrane of the cochlear duct, from the tympanic lip of the osseous spiral lamina to the outer pillar cell of the spiral organ . Also called zona tecta.
the state of being bent or curved. the use of arches in building. a system or grouping of arches. noun the use of arches or vaults in buildings an arrangement of arches arcuation ar·cu·a·tion (är’kyōō-ā’shən) n. A curvature.