What's the difference between epiphysis and metaphysis?
Epiphysis
Definition:
(n.) The end, or other superficial part, of a bone, which ossifies separately from the central portion, or diaphysis.
(n.) The cerebral epiphysis, or pineal gland. See Pineal gland, under Pineal.
Example Sentences:
(1) In the other, the proximal fibula was excised and the epiphysis placed across the saphenous artery and vein in the groin.
(2) Radiographically the bone cyst distinguishes itself by its central localisation in the metaphysis, where as the giant cell tumor has an excentric position in the epiphysis with a tendency of extending into the metaphysis.
(3) In skeletal remains of immature children, the epiphysis is not usually available to estimate age.
(4) The axes of these lines converge in a frontal plane on the epiphysis.
(5) The chief characteristics of stage 18 (approximately 44 postovulatory days) are rapidly growing basal nuclei; appearance of the extraventricular bulge of the cerebellum (flocculus), of the superior cerebellar peduncle, and of follicles in the epiphysis cerebri; and the presence of vomeronasal organ and ganglion, of the bucconasal membrane, and of isolated semicircular ducts.
(6) Importance must also be given to the lowered sensibility of epiphysial growth zones to male sex hormone; this reduced sensibility is especially to be seen in chromatin-positive men.
(7) A single application of fluoride to the epiphysis of the femur induced accelerated bone formation.
(8) The treatment consisted of bolting the capitular epiphysis (head) of the femur with a homologous bone chip.
(9) Under those conditions a decrease in the epiphysis density and calcium and phosphorus content both in the shinbone and in the femur of the left extremity was similar both in pseudo-operated and ovariectomized rats.
(10) A girl with growth hormone deficiency developed a necrosis of the femoral capital epiphysis 6 months after the start of human growth hormone treatment.
(11) In relation to two rare cases of fracture-separation of the os acromiale, 26 other cases of defective epiphysial fusion were studied.
(12) The ability of matrix vesicles isolated from the epiphysial growth plate of 6-week-old chicks to facilitate the precipitation of calcium phosphate was studied in vitro.
(13) A varus pin position resulting in a more inferior pin placement in the proximal femoral epiphysis was found to be associated with the fewest complications.
(14) Twenty children with fracture-separation of the entire distal humeral epiphysis have been reported.
(15) The transfer of vascularized epiphysis with its growth plate has been shown in animal limbs to achieve a rate of growth comparable with the normal site.
(16) Their main drawbacks might be damage of the distal tibial epiphysis and of the functions of the ankle joint and talo-calcaneonavicular joint.
(17) With rapid distraction at rates of 1 mm per day (distractional epiphyseolysis) separation of the epiphysis from the metaphysis occurred by day 7, and by day 70 almost complete ossification of the cartilage and the elongated segment was evident.
(18) Plain radiographs demonstrated a well-defined lytic lesion in the epiphysis.
(19) Osteosarcoma in the metaphysis to epiphysis of the left femur of a 17-year-old male is reported.
(20) The presence of a proximal tibial epiphysis of 1 or 2 mm was associated with a gestational age of greater than 36 weeks in 88% of fetuses, whereas a proximal tibial epiphysis greater than or equal to 3 mm was associated with a gestational age of greater than 38 weeks in 94% of fetuses.
Metaphysis
Definition:
(n.) Change of form; transformation.
Example Sentences:
(1) Conservatively treated compressed fractures of the distal radius dorsal metaphysis healed despite primarily good reduction and consequent treatment with a decrease in dorsal length.
(2) Radiographically the bone cyst distinguishes itself by its central localisation in the metaphysis, where as the giant cell tumor has an excentric position in the epiphysis with a tendency of extending into the metaphysis.
(3) Bone mineral content of the distal tibial metaphysis of casted and uncasted limbs was measured by single photon absorptiometry.
(4) Quantitative bone histomorphometric analyses of the proximal tibial metaphysis were made in all experimental groups.
(5) The progressive valgus deformity might have been caused by stimulation of overgrowth of the medial tibial metaphysis.
(6) A graft consisting of semitendinosus and gracilis (SG) tendons is passed under the anterior horn of the medial meniscus through the knee joint, then brought out through the posterior capsule and secured to the lateral femoral metaphysis.
(7) Lesions were a cone of retained cartilage, confined to the postero-medial area of the proximal metaphysis of the tibiotarsus.
(8) With rapid distraction at rates of 1 mm per day (distractional epiphyseolysis) separation of the epiphysis from the metaphysis occurred by day 7, and by day 70 almost complete ossification of the cartilage and the elongated segment was evident.
(9) Osteosarcoma in the metaphysis to epiphysis of the left femur of a 17-year-old male is reported.
(10) After consolidation of the distraction area, this zone of chondrocytes, located in the metaphysis, was still producing new bone 20 weeks postoperatively.
(11) The fissures occurred after 20 months of treatment on average and were revealed by pain in the metaphysis with early high radionuclide uptake.
(12) The physis of the tibial tuberosity is composed primarily of fibrocartilage and fibrous tissue, with bone being added to the anterior portion of the tibial metaphysis by membranous bone formation.
(13) Histomorphometric studies of the tibial metaphysis also did not show significant differences in trabecular bone volume between sham-operated and ORX males.
(14) Histomorphometric analysis of bone alterations was performed using undecalcified longitudinal as well as grounded cross sections of the tibial metaphysis and diaphysis.
(15) They were not confined to the metaphysis of long bones.
(16) Spiral fractures in the shaft or distal metaphysis of the tibia predominated (73%); the incidence of concomitant fibular fracture was low.
(17) The microangiographic findings of the femoral epiphysis were classified into the following four types: 1) uniform distribution of radiopacity; 2) absence of radiopacity in the medial portion; 3) complete absence of radiopacity; and 4) intercourse of blood vessels between the epiphysis and the metaphysis.
(18) Stress fractures of the tibia commonly occur in the proximal metaphysis and heal readily with rest.
(19) Based on a correlative radiographic and histologic slab study of the wrists in 50 infants who died of unrelated diseases, the author's chief conclusions are as follow: 1) On the wrist radiograph of the infant, bone bark in the Ranvier's groove may appear as a "thorn-like" bony process on the margins of the metaphysis of the radius and ulna.
(20) To evaluate the response of both cortical and trabecular bone to MA, histologic studies were done at three separate sites in the tibia, cortical bone from the mid-shaft, and trabecular bone from the epiphysis and from the metaphysis.