31. The columellar ( parietal ) margin is arcuate , convex, and three-toothed. 32. :I think the original question was about the arcuate fibers, not arcuate fasciculus. 33. :I think the original question was about the arcuate fibers, not arcuate fasciculus. 34. The jaw is thin, arcuate , with a wide median projection below or none. 35. The elongated columella, slightly arcuated , is terminated by a pretty prominent oblique fold. 36. The arcuate fasciculus is a white matter tract that connects Broca s and Wernicke s areas. 37. One function of the arcuate fasciculus is the connection between Wernicke s and Broca s area. 38. Subsequent orogeny ( ca . 2680 2655 Ma ) resulted in shear zones and arcuate structures. 39. This structure has an arcuate shape. 40. A system of large, arcuate normal faults lie radial to the volcano's center.