| mastoid margin of occipital bone | The margin of the occipital squama that articulates with the temporal bone. Synonym: margo mastoideus squamae occipitalis, mastoid margin of occipital bone. (05 Mar 2000) |
|---|---|
| mastoid part of the temporal bone | The portion of the petrous part of the temporal bone bearing the mastoid process. Synonym: pars mastoidea ossis temporalis. (05 Mar 2000) |
| maxillary surface of palatine bone | The lateral surface of the perpendicular plate of the palatine bone. Synonym: facies maxillaris ossis palatini. (05 Mar 2000) |
| cavalry bone | Heterotopic bone ossification of the tendon of the adductor longus muscle from strain in horseback riding. Synonym: cavalry bone, exercise bone. (05 Mar 2000) |
| medial cuneiform bone | The largest of the three cuneiform bones, the medial bone of the distal row of the tarsus, articulating with the intermediate cuneiform, navicular, and first and second metatarsal bones. Synonym: os cuneiforme mediale, first cuneiform bone, wedge bone. (05 Mar 2000) |
| replacement bone | A bone that develops in a cartilage environment after the latter is partially or entirely destroyed by calcification and subsequent resorption. Synonym: cartilage bone, replacement bone. (05 Mar 2000) |
| central bone | A small bone occasionally found at the dorsal aspect of the wrist between the scaphoid, capitate, and trapezoid; it is developed as an independent cartilage in early foetal life but usually becomes fused with the scaphoid; it occurs normally in most monkeys. Synonym: central bone. (05 Mar 2000) |
| central bone of ankle | A bone of the tarsus on the medial side of the foot articulating with the head of the talus, the three cuneiform bones, and occasionally the cuboid. Synonym: os naviculare, central bone of ankle, os centrale tarsi. (05 Mar 2000) |
| medullary bone | Areas of bone formation present in the marrow spaces of the long bone's of birds, which serve as a readily mobilised source of calcium for shell formation. (05 Mar 2000) |
| penis bone | A bone of variable size and shape, located in the glans penis or glans clitoridis of all animals, except man, ungulates, elephants, whales, and a few others; it is particularly well developed in carnivora, and in the dog may reach a length of more than 10 cm; its size and shape are often a characteristic of a species. Synonym: baculum, penis bone. (05 Mar 2000) |
| reticulated bone | Bony tissue characteristic of the embryonal skeleton, in which the collagen fibres of the matrix are arranged irregularly in the form of interlacing networks. Synonym: nonlamellar bone, reticulated bone. (05 Mar 2000) |
| Goethe's bone | A large sutural bone occasionally found detached from the anterior portion of the os interparietale. Synonym: Goethe's bone. (05 Mar 2000) |
| membrane bone | A bone that develops embryologically within a membrane of vascularised primitive mesenchymal tissue without prior formation of cartilage. (05 Mar 2000) |
| gorham's vanishing bone disease | <radiology> Massive osteolysis of Gorham, painless, occurs in kids and young adults, not life-threatening unless vital structures are encroached upon, some recover spontaneously, with or without residual deformity, complete destruction of part or all of bone by angiomatous tissue, usually unifocal, affects proximal skeleton, may spread into soft tissues and adjacent bones Cf: other syndromes of spontaneous osteolysis (12 Dec 1998) |
| cheek bone | A quadrilateral bone which forms the prominence of the cheek; it articulates with the frontal, sphenoid, temporal, and maxillary bone. Synonym: os zygomaticum, cheek bone, jugal bone, mala, malar bone, os malare, yoke bone, zygoma. (05 Mar 2000) |