有颌类包括硬骨鱼类以及软骨鱼类。
Gnathostomes include the bony Osteichthyes and the cartilaginous Chondrichthyes.
长有颌缘牙的、端生齿的动物。
Having teeth attached to the edge of the jawbone without sockets.
软骨鱼类(鲨鱼、鳐、银鲛)仅占有颌类物种数的2%,其余98%的有颌类都属于硬骨鱼类。
Chondrichthyes (sharks, rays and chimaeras) account for only 2% of gnathostome species, the Osteichthyes accounting for the other 98%.
他偶然发现了一个450万年前的有袋动物的颌骨。
He came across the jawbone of a 4.5 million-year-old marsupial.
伯格尔博士和他的同事们在论文中写道,这块颌骨有一些类似人类的特征,然而,这并不表示这块颌骨的主人就必须是人类。
The jawbone has some human-like features, Dr. Berger and colleagues write, yet that does not mean the owner of the jawbone was necessarily human.
在它们扁圆头部的前端有一对弯曲的尖牙作为颌齿,用来俘获甲壳类生物并将其撕碎。
At the front of their bulbous blue heads they have curved fangs that act as jaws. They use these to capture and tear apart their crustacean prey.
提取出原始DNA的颌骨如今已经回到无名水兵的遗骨里,同时,有各种暂时性的计划打算把这个人埋在杰拉尔顿。
The jawbone from which he had the crucial DNA extracted is now back with the rest of the Unknown Sailor’s remains, and there are provisional plans to bury the man in Geraldton.
而处于排卵期的女性更倾心于有男子气概的男人:颌骨宽大、双眉浓密、身材魁梧,浑身无不透着阳刚之气。
When the women were ovulating, however, they favoured the manly-looking men - big jaws, prominent eyebrows and larger bodies - the stuff that screams virility.
几天以后,在该目击地的附近,化石猎手阿勒迈耶胡·阿斯范(AlemayehuAsfaw)有又发现了一片带有第一臼齿的儿童颌骨化石。
A couple of days later near the same spot, fossil hunter Alemayehu Asfaw found a piece of a child's jaw with a first molar tooth.
结果:下颌偏位的健康有牙颌者中,在颌位矫正前后头部、肩部、腰部姿势变化者约有50%;
Results: In frontal cephalograms, 50% of subjects were found the changes of postures of head, shoulder and waist after treatment.
结果口腔颌面部错构瘤有其自身的组织学和临床特征。
Results Hamartomas of the oral and maxillofacial region had their own characteristics of histopathologic appearance and clinical symptoms .
大约50%的患者有临床症状,颌部隆起是最常见的症状,见于85%以上的有症状的患者。
Approximately 50% of patients are symptomatic with jaw swelling being the most common symptom, seen in up to 85% of symptomatic patient.
颌类脊椎动物有一种能产生特定抗体以此抵抗外来物质的能力。
Jawed vertebrates have the ability to form specific antibodies in response to many foreign substances.
初步选定的测量项目有四部分136项,颅颌面硬组织立体形态图具有能多方向观察、光滑、透视感强等特点。
Four parts items consisting of 136 items are selected first and 3-D perspective curving illustrations may be rotated for viewing in all directions.
材料与方法:对临床诊断有骨折的31例颌面部外伤患者进行CT薄层扫描和3d重建。
Materials and Methods: 31 trauma patients suspected of having facial fractures were examined with thin-slice ct scan and 3d reconstruction.
狮尾猕猴亚洲中南部一种猴,(狮尾猕猴猕猴属),体表黑色且有光泽,脸部有灰色绉颌。
A monkey (Macaca silenus) of south - central Asia, having a glossy black coat and a ruff of gray hair about the face.
所以,光纤刀对血管丰富的口腔颌面部手术有实用价值,可以广泛应用。
Thus, it is of practical value to oral and maxillofacial operation having blood vessels in plenty, and it might be used more widely.
摘要口腔颌面-头颈部是黏膜黑色素瘤的高发部位,该病侵袭性强,易发生区域和远处转移,预后很差,临床治疗有很大的难度。
Abstract : Oral and maxillofacial-head and neck are region with high incidence of mucosal melanoma. The neoplasm is rare but aggressive, with high incidence of regional or distant metastasis.
星球模式下,它拥有标志性的大颌,外壳可以打开成为攻击模式,在底部有支撑以保证直立状态。
In planet mode it had the trademark clamping jaws, the shell would open up for an attack mode, and also kept itself upright with pegs on the bottom.
口腔颌面部感觉神经丰富,在伤口愈合中感觉神经释放的神经肽对伤口愈合的质量和速度有重要影响。
In oral cavity and maxillofacial region there are rich sensory nerves. The neuropeptide (sp) secreted from sensory nervous terminals affects the quality and the speed of wound healing.
含齿囊肿是颌部第二常见的囊肿,4%有未萌出牙的病人会出现含齿囊肿。
Dentigerous cysts are the second most common type of cyst in the jaw. 4% of patients with unerupted teeth have a dentigerous cyst.
结论安氏三类错合伴开合患者,行双颌正颌手术后,其开合距离与颏部形态变化有相关性。
ConclusionMesioclusion with open bite patients after orthognathic surgery, their open-bite distance has correlation with chin form.
对不同布局的总压恢复系数进行比较,颌下及两侧进气则较头部进气有好的攻角特性。
By comparison of inlet total pressure recovery coefficient, attack-angle performance of chin inlet and two-dimensional inlet are superior to frontal inlet.
结果尖牙尖对尖颌位时的接触形式有六类:尖牙保护44。
Results in canine-to-canine position, the occlusal contact mode was classified into six groups: canine protection 44.
结论:颌面形态与上位颈椎的倾斜有明显相关关系;
Conclusion:Dentofacial morphology was correlated to cervical vertebrae alignment;
结论掌握各种颌骨囊性病变CT表现及病理特点对其诊断、治疗有重要意义。
Conclusion Understanding various kinds of ct features and pathologic characteristics of jaw bone cystoid disease is of important meaning to diagnose and treat this disease.
结论掌握各种颌骨囊性病变CT表现及病理特点对其诊断、治疗有重要意义。
Conclusion Understanding various kinds of ct features and pathologic characteristics of jaw bone cystoid disease is of important meaning to diagnose and treat this disease.
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