| 释义 |
Definition of symphysis in English: symphysisnounPlural symphyses ˈsɪmfɪsɪsˈsɪmfəsəs Anatomy Zoology 1mass noun The process of growing together. Example sentencesExamples - Chemical pleurodesis consists of the introduction of asclerosing agent into the pleural cavity to achieve symphysis of the two pleural layers and, thus, obliteration of the pleural space.
- Dyspnea may respond to pleural fluid drainage followed by a pleurodesis procedure that creates a symphysis of the visceral and parietal pleuras, thereby preventing pleural fluid reaccumulation.
- Pleurodesis, from the Greek pleura and desis (binding together), is intended to achieve a symphysis between parietal and visceral pleura.
2A place where two bones are closely joined, either forming an immovable joint (as between the pubic bones in the centre of the pelvis) or completely fused (as at the midline of the lower jaw). Example sentencesExamples - The medial surface of the dentary immediately below the first tooth is expanded to form a flat mandibular symphysis with a subcircular to rectangular outline.
- The canal narrows and becomes shallower anteriorly, terminating at the mandibular symphysis with a height of less than 1 mm and a depth of less than I mm.
- The length of the mandibular symphysis is less than 20% the length of the ramus, and in the upper jaw, the toothrows diverge posteriorly.
- The mandibular symphysis is more than one-third of the total length of the mandible, and the dentary, angular, and splenial are involved.
- According to Von Meyer no mandibular tusks were present and most probably the jaw possessed a short elephantine symphysis.
Derivatives adjectivesɪmˈfɪzɪəl Anatomy Zoology The oral surface bears three robust tritors: an elongate outer tritor along the labial margin and anterior and posterior tritors near the symphyseal margin. Example sentencesExamples - The lingual ridge diminishes in height approaching the symphysis where it is absent, producing a narrow symphyseal trough.
- Radiographic examination revealed an irregular radiolucency in the mandible symphyseal region between the right and left premolars.
- The tooth plate has a prominent mesial angle, somewhat blunted, from which the labial margin slopes sharply distad, then veers outward, and finally turns distad again to parallel the straight symphyseal edge.
- The symphyseal region of the mandibles is short, wide, and slightly downturned.
adjective sɪmˈfɪzɪəl Anatomy Zoology In this view, soft tissues that permitted, and presumably helped to control, these inter-mandibular movements would have occupied the gap between the symphysial surfaces of the dentaries and splenials. Example sentencesExamples - It is relatively durable, so that even in collections of mostly fragmentary material the mandible, and especially the symphysial region, is often recovered in at least partly articulated condition.
- Anteriorly, the symphysial surface is raised above the adjacent bone and is divided into an upper and lower arm (superior and inferior torus), which meet anteriorly and diverge posteriorly.
- From the anterior tip of the dentary, the symphysial area extends posteriorly along the dental shelf to the level of tooth four and posteroventrally along the anteroventral margin of the dentary to the level just anterior of tooth four.
- The symphysial end of the dentary is too crushed to permit estimation of its proportional participation in the symphysis.
Origin Late 16th century (in sense 2): modern Latin, from Greek sumphusis, from sun- 'together' + phusis 'growth'. Definition of symphysis in US English: symphysisnounˈsɪmfəsəsˈsimfəsəs Anatomy Zoology 1The process of growing together. Example sentencesExamples - Pleurodesis, from the Greek pleura and desis (binding together), is intended to achieve a symphysis between parietal and visceral pleura.
- Chemical pleurodesis consists of the introduction of asclerosing agent into the pleural cavity to achieve symphysis of the two pleural layers and, thus, obliteration of the pleural space.
- Dyspnea may respond to pleural fluid drainage followed by a pleurodesis procedure that creates a symphysis of the visceral and parietal pleuras, thereby preventing pleural fluid reaccumulation.
2A place where two bones are closely joined, either forming an immovable joint (as between the pubic bones in the center of the pelvis) or completely fused (as at the midline of the lower jaw). Example sentencesExamples - The medial surface of the dentary immediately below the first tooth is expanded to form a flat mandibular symphysis with a subcircular to rectangular outline.
- The length of the mandibular symphysis is less than 20% the length of the ramus, and in the upper jaw, the toothrows diverge posteriorly.
- The mandibular symphysis is more than one-third of the total length of the mandible, and the dentary, angular, and splenial are involved.
- The canal narrows and becomes shallower anteriorly, terminating at the mandibular symphysis with a height of less than 1 mm and a depth of less than I mm.
- According to Von Meyer no mandibular tusks were present and most probably the jaw possessed a short elephantine symphysis.
Origin Late 16th century (in symphysis (sense 2)): modern Latin, from Greek sumphusis, from sun- ‘together’ + phusis ‘growth’. |