- The lateral (outside) and smaller of the two long bones in the lower leg between the knee and ankle. (The other bone in the lower leg is the tibia.) The fibula is not weight bearing. It articulates (comes together to form a joint) with the tibia above and with the tibia and the talus bone below. The word "fibula" comes from the Latin meaning clasp or brooch. The fibula was likened to a clasp attaching it to the tibia to form a brooch. The fibula is also called the calf bone.
* * *The lateral and smaller of the two bones of the leg; it is not-weight bearing and articulates with the tibia above and the tibia and talus below. SYN: calf bone, calf-bone (1), perone, peroneal bone. [L. f. (contr. fr. figibula), that which fastens, a clasp, buckle, fr. figo, to fix, fasten]
* * *fib·u·la 'fib-yə-lə n, pl -lae -lēalso -.lī or -las the outer or postaxial and usu. the smaller of the two bones of the hind or lower limb below the knee that is the slenderest bone of the human body in proportion to its length, articulates above with the external tuberosity of the tibia and below with the talus, and has its lower end forming the external malleolus of the ankle called also calf bonefib·u·lar -lər adj
* * *n.the long thin outer bone of the lower leg. The head of the fibula articulates with the tibia just below the knee; the lower end projects laterally as the lateral malleolus, which articulates with one side of the talus.
* * *fib·u·la (fibґu-lə) [L. â€œbuckleâ€][TA] the outer and smaller of the two bones of the leg, which articulates proximally with the tibia and distally is joined to the tibia in a syndesmosis. See Plate 40.
Anteromedial view of right fibula.
Medical dictionary. 2011.