| articulatio ossis pisiformis | The synovial joint between the pisiform and triquetrum; it is separate from the other intercarpal joints. Synonym: articulatio ossis pisiformis, articulation of pisiform bone. (05 Mar 2000) |
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| basis ossis metacarpalis | The expanded proximal extremity of each metacarpal that articulates with one or more of the distal row of carpal bones. Synonym: basis ossis metacarpalis. (05 Mar 2000) |
| basis ossis metatarsalis | The expanded proximal extremity of each metatarsal bone; it articulates with one or more of the distal row of tarsal bones. Synonym: basis ossis metatarsalis. (05 Mar 2000) |
| basis ossis sacri | The upper end of the sacrum that articulates with the body of the fifth lumbar vertebra in the midline and the alae on either side. Synonym: basis ossis sacri. (05 Mar 2000) |
| caput ossis femoris | The hemispheric articular surface at the upper extremity of the thigh bone. Synonym: caput ossis femoris, caput femoris, head of thigh bone. (05 Mar 2000) |
| caput ossis metacarpalis | The expanded distal end of a metacarpal that articulates with the proximal phalanx of the same digit. Synonym: caput ossis metacarpalis. (05 Mar 2000) |
| caput ossis metatarsalis | The expanded distal end of a metatarsal bone that articulates with the proximal phalanx of the same digit. Synonym: caput ossis metatarsalis. (05 Mar 2000) |
| ramus inferior ossis pubis | ramus inferior ossis pubis |
| ramus ossis ischii | The branch of the ischial bone, formerly called inferior branch of the ischium; the portion of the bone that passes forward from the ischial tuberosity to join the inferior ramus of the pubic bone, thus forming the ischiopubic ramus. Synonym: ramus ossis ischii. (05 Mar 2000) |
| ramus superior ossis pubis | A bar of bone, triangular in section, which extends posterosuperiorly from the body of the pubis to form the superior boundary of the obturator foramen; developmentally, it contributes about one-fifth of the articular surface of the acetabulum. Synonym: ramus superior ossis pubis, superior branch of the pubic bone. (05 Mar 2000) |
| pars basilaris ossis occipitalis | The part of the occipital bone that lies anterior to the foramen magnum and joins with the body of the sphenoid bone. Synonym: pars basilaris ossis occipitalis, basal part of occipital bone, basilar apophysis, basilar process of occipital bone, basilar process, basiocciput. (05 Mar 2000) |
| pars lateralis ossis occipitalis | The part of the occipital bone that lies on either side of the foramen magnum. Synonym: pars lateralis ossis occipitalis, exoccipital bone. (05 Mar 2000) |
| pars lateralis ossis sacri | The lateral mass of the sacrum formed by the fused costal elements. Synonym: pars lateralis ossis sacri. (05 Mar 2000) |
| pars mastoidea ossis temporalis | The portion of the petrous part of the temporal bone bearing the mastoid process. Synonym: pars mastoidea ossis temporalis. (05 Mar 2000) |
| pars petrosa ossis temporalis | The part of the temporal bone that contains the structures of the inner ear and the second part of the internal carotid artery; in antenatal life it appears as a separate ossification centre. Synonym: pars petrosa ossis temporalis, periotic bone, petrosal bone, petrous pyramid. (05 Mar 2000) |