专业术语—口腔生理学术语P3(英文详解)

    Planktonic¹ - a form of life style in which an organisms floats freely in a fluid without significant attachment² or association with other living forms.

    Plaque³ is a film of bacteria in a matrix of salivary⁴ and bacterial⁵ polymers. It can be called a biofilm as it has a complex population of organisms which when mature, reach an ecological⁶ balance with one another.

    Plasma⁷ - the fluid part of blood, containing proteins and salts, from which the blood cells have been removed. see alsoserum.

    Plasmid- a circular piece of DNA⁸ found in the cell cy lasm of bacteria which is able to reproduce itself independently of it host. Plasmids may transmit a resistance to antibiotics⁹ from one bacteria to another. They are of great importance in techniques using for recombinant DNA.

    Platelet- derived¹⁰ growth factor - a cytokine found especially in platelets. It stimulates¹¹ cell proliferation and encourages wound healing.

    Platelets - are small colourless discs of cy lasm found in blood. When platelets come into contact with a damaged vessels¹² surface they change in several important ways. They begin to swell¹³, their shape becomes irregular with protruding¹⁴ processes, they become sticky and they release an enzyme¹⁵ which causes the formation of thromboxane, one of the precursors¹⁶ of thrombin. Thromboxane also activates¹⁷ nearby platelets, thus starting a positive feedback which rapidly increases the mass of sticky platelets which form a platelet plug. This process accounts for daily damage to capillary¹⁸ walls. Damage on a larger scale requires other mechanism¹⁹ for haemostasis. Platelets also release serotonin which acts as a powerful vasoconstrictor

1 planktonic   

[医] 浮游生物的

参考例句：

• Warmer Winters: Are Planktonic Algal Populations in Sweden's Largest Lakes Affected? 暖冬：瑞典最大湖泊的浮游藻类种群是否受到影响？
• They eat planktonic crustaceans and fish larvae. 以浮游的甲壳动物和鱼类幼体为食。

2 attachment   

n.附属物，附件；依恋；依附

参考例句：

• She has a great attachment to her sister.她十分依恋她的姐姐。
• She's on attachment to the Ministry of Defense.她现在隶属于国防部。

3 plaque   

n.饰板，匾，(医)血小板

参考例句：

• There is a commemorative plaque to the artist in the village hall.村公所里有一块纪念该艺术家的牌匾。
• Some Latin words were engraved on the plaque. 牌匾上刻着些拉丁文。

4 salivary   

adj. 唾液的

参考例句：

• Small doses depress salivary and bronchial secretion and sweating. 小剂量可抑制唾液分泌、支气管分泌及出汗。
• The five pairs of salivary glands open into the mouth. 有五对唾液腺通向口腔。

5 bacterial   

a.细菌的

参考例句：

• Bacterial reproduction is accelerated in weightless space. 在失重的空间，细菌繁殖加快了。
• Brain lesions can be caused by bacterial infections. 大脑损伤可能由细菌感染引起。

6 ecological   

adj.生态的，生态学的

参考例句：

• The region has been declared an ecological disaster zone.这个地区已经宣布为生态灾难区。
• Each animal has its ecological niche.每种动物都有自己的生态位.

7 plasma   

n.血浆，细胞质，乳清

参考例句：

• Keep some blood plasma back for the serious cases.留一些血浆给重病号。
• The plasma is the liquid portion of blood that is free of cells .血浆是血液的液体部分，不包含各种细胞。

8 DNA   

(缩)deoxyribonucleic acid 脱氧核糖核酸

参考例句：

• DNA is stored in the nucleus of a cell.脱氧核糖核酸储存于细胞的细胞核里。
• Gene mutations are alterations in the DNA code.基因突变是指DNA密码的改变。

9 antibiotics   

n.（用作复数）抗生素；（用作单数）抗生物质的研究；抗生素，抗菌素( antibiotic的名词复数 )

参考例句：

• the discovery of antibiotics in the 20th century 20世纪抗生素的发现
• The doctor gave me a prescription for antibiotics. 医生给我开了抗生素。

10 derived   

vi.起源；由来；衍生；导出v.得到( derive的过去式和过去分词 )；（从…中）得到获得；源于；（从…中）提取

参考例句：

• Many English words are derived from Latin and Greek. 英语很多词源出于拉丁文和希腊文。 来自《简明英汉词典》
• He derived his enthusiasm for literature from his father. 他对文学的爱好是受他父亲的影响。 来自《简明英汉词典》

11 stimulates   

v.刺激( stimulate的第三人称单数 )；激励；使兴奋；起兴奋作用，起刺激作用，起促进作用

参考例句：

• Exercise stimulates the body. 运动促进身体健康。 来自《简明英汉词典》
• Alcohol stimulates the action of the heart. 酒刺激心脏的活动。 来自《现代英汉综合大词典》

12 vessels   

n.血管( vessel的名词复数 )；船；容器；（具有特殊品质或接受特殊品质的）人

参考例句：

• The river is navigable by vessels of up to 90 tons. 90 吨以下的船只可以从这条河通过。 来自《简明英汉词典》
• All modern vessels of any size are fitted with radar installations. 所有现代化船只都有雷达装置。 来自《现代汉英综合大词典》

13 swell   

vi.膨胀，肿胀；增长，增强

参考例句：

• The waves had taken on a deep swell.海浪汹涌。
• His injured wrist began to swell.他那受伤的手腕开始肿了。

14 protruding   

v.（使某物）伸出，（使某物）突出( protrude的现在分词 )；凸

参考例句：

• He hung his coat on a nail protruding from the wall. 他把上衣挂在凸出墙面的一根钉子上。
• There is a protruding shelf over a fireplace. 壁炉上方有个突出的架子。 来自辞典例句

15 enzyme   

n.酵素，酶

参考例句：

• Above a certain temperature,the enzyme molecule will become unfolded.超过一定温度，酶分子将会展开。
• An enzyme that dissolves the fibrin of blood clots.能溶解血凝块中的纤维的酶。

16 precursors   

n.先驱( precursor的名词复数 )；先行者；先兆；初期形式

参考例句：

• Phenyl (or polyphenyl) substituted epoxides serve as excellent precursors to phenyl (or diphenyl) carbenes. 某些苯代（或多苯）环氧乙烷是制取带苯环（或二苯）碳烯的极好原料。 来自辞典例句
• Note the presence of megakaryocytes, erythroid islands, and granulocytic precursors. 可见巨核细胞，红细胞岛和粒细胞前体细胞。 来自互联网

17 activates   

使活动，起动，触发( activate的第三人称单数 )

参考例句：

• Activates the window and displays it in its current size and position. 激活窗口，保持当前的大小及位置不变。
• Pulling out the alarm switch activates alarm and pushing it deactivates it. 闹钟的开和关是通过拔出和按入闹铃开关实现的。

18 capillary   

n.毛细血管；adj.毛细管道；毛状的

参考例句：

• Rapid capillary proliferation is a prominent feature of all early wound healing.迅速的毛细血管增生是所有早期伤口愈合的一个突出表现。
• When pulmonary capillary pressure is markedly elevated,pulmonary edema ensues.当肺毛细血管压力明显升高时，就出现肺水肿。

19 mechanism   

n.机械装置；机构，结构

参考例句：

• The bones and muscles are parts of the mechanism of the body.骨骼和肌肉是人体的组成部件。
• The mechanism of the machine is very complicated.这台机器的结构是非常复杂的。