What's the difference between apophysis and epiphysis?

Apophysis


Definition:

  • (n.) A marked prominence or process on any part of a bone.
  • (n.) An enlargement at the top of a pedicel or stem, as seen in certain mosses.

Example Sentences:

  • (1) All patients had the apex of the odontoid apophysis above McGregor's line, 4 mm in the case 9, and 10 mm or more in the others.
  • (2) It has been considered to be the result of a fracture of the posterior ring apophysis in association with a herniated disc.
  • (3) When compared with normal age- and sex-matched subjects, preoperative bone mineral content was decreased by more than 1 SD in 24 patients 3 cm from the styloid apophysis (distal site) and in 23 patients 8 cm from the styloid apophysis (proximal site).
  • (4) The state of maturation of the iliac crest apophysis, together with clinical observations of secondary sexual maturation, permit an accurate assessment of skeletal maturation without the need for wrist and hand roentgenograms.
  • (5) This indicates that growth disturbance of the greater trochanteric apophysis as a result of plate fixation leads to long-term deformity.
  • (6) The author published a case of cholesteatoma of the middle ear occurring a few months after head injury with fracture of the mastoid apophysis.
  • (7) Typical areas are the inferior pole of the patella, the tibial tubercle and the calcaneal apophysis.
  • (8) The styloid syndrome is caused by an irritation of the glossopharyngeal nerve from an excessive development of the styloid apophysis.
  • (9) A number of points emerge from a review of the literature which are vital to isolate the spinal accessory nerve: 1) the transversal apophysis of the atlas is particularly prominent in the retrostyloid space and lies half-way across an imaginary horizontal segment connecting the mastoid process with the angle of the mandible; 2) the posterior edge of the sternocleidomastoid muscle at approximately six centimetres from the mastoid process; 3) the nervous point of Erb located at the point where the superficial branches of the cervical plexus emerge from the posterior edge of the sternocleidomastoid muscle (the nerve generally emerges from the posterior edge of the sternocleidomastoid muscle two centimetres above this point and two centimetres below it the nerve meets the anterior edge of the trapezius).
  • (10) First described in adolescents, this entity was considered as a traumatic fracture of the posterior ring apophysis.
  • (11) In children, before fusion of the apophysis, there may be an apophyseolysis.
  • (12) Two variations were mainly observed: the transverse mega-apophysis and the cervical rib.
  • (13) Fractures of the lumbar vertebral limbus involve varying degrees of fragmentation of the peripheral ring apophysis, located at the posterior superior or posterior inferior margins of the mid to lower lumbar vertebrae.
  • (14) The studies revealed that the incorporation of 35S within the apophysis of the iliac crest was similar to that seen within pressure epiphyses, being heaviest in the proliferating and hypertrophying cells in the growth plate and around the secondary centre of ossification.
  • (15) Nextly insertionstendinopathy with apophysis disorders and aseptic necrosis were also noticed.
  • (16) The iliac wing, with its attached apophysis, was transplanted to the defect in the medial condyle.
  • (17) The external orbital apophysis provides a zone of solid anchorage for the treatment of fractures as well as for the immobilization of osseous fragments after facial osteotomy.
  • (18) The authors describe three pathological entities affecting the apophysis of the ischial tuberosity observed in young athletes.
  • (19) Avulsion of the superior apophysis occurs after flexion, while extension trauma causes avulsion of the inferior ring apophysis.
  • (20) Risser's sign, a measure of the excursion of the iliac crest apophysis, has been used to estimate remaining skeletal growth.

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.

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