专业术语—口腔生理学术语E1(英文详解)

时间：2006-06-21 16:00:00

（单词翻译:单击）

Ecological¹ balance - astable balance in the numbers of each species in an ecosystem². In the ecosystem of the mouth this balance is brought about by competition and cooperation between the different organism and the hosts defences which tend to control population size.

Ecosystem - a stable environment in which live a large number of different forms of life, each affecting the other. Example are a forest, desert, tidal area, soil, oral cavity, gut³.

Ectoderm - the outer of the three cell layers which form, as the clump⁴ of early embryonic⁵ cells begins to differentiate⁶. The ectoderm will form the epidermis⁷ of the skin and the nervous system. The other two layers are the mesoderm and the endoderm.

Ectomesenchyme - a name given to dental MESENCHYME which reflects its partly ectodermal origin.

Eicosanoids - are a class of hormones⁸ which are all made from phospholipids. They include prostaglandins, thromboxanes, and leucotriens.

Elastic⁹ fibres -are long, thin, ribbons-like fibres, sometimes even sheet-like. They are composed of a central core of elastin, a rubbery protein, surrounded by glycoprotein microfilaments. Elastin is found all over the body but particularly in the walls of blood vessels¹⁰ and in our vocal¹¹ chords.

Electron - the negatively charged elements of an atom which circle the nucleus¹². If an electron is lost the atom becomes a relatively¹³ positively¹⁴ charged ion. It has been ionised .

Electron Transport System- Hydrogen ions produced during the 3 preparatory steps of aerobic¹⁵ respiration¹⁶ are carried by nicotinamide adenine dinucleotide (NAD). The hydrogen ion plus one electron form NADH, which is taken to the electron transport system. This transport system is run by a series of 5 molecules¹⁸. The first, removes the two electrons from NADH,( one comes from the hydrogen atom, leaving behind a hydrogen ion). These two electrons, bounce from the first molecule¹⁷ in the transport system to the second, third, forth¹⁹ and then last one, cytochrome oxidase, which finally places the electrons onto oxygen gas O2. The electron rich oxygen atoms are attractive to the hydrogen ions and they combine to form water. (Oxygen in the process of aerobic respiration acts therefore as an electron acceptor). In the process of bouncing "downhill" the electrons have released sufficient energy to power up a small battery. This battery has been made by pumping hydrogen ions out of the inner membrane²⁰ of the mitochondria. The collection of hydrogen ions outside, piles up and their electrical pressure mounts. They want to get back across the membrane, and are allowed, one at a time to pass back through the enzyme²¹ ATP synthase. This enzyme sits like a water wheel in the cell membrane, turned by the passage of hydrogen ions. Its turning wheel builds an ATP molecule in every turn. The wheel may be going at about 200 revolutions per second, powering the synthesis of an ATP molecule with each turn. ATP formed in this way takes a while but can be sustained to fuel the body during aerobic exercise. When the demand for power exceeds this rate, the cells have to rely on anaerobic²² respiration.

Electrostatic - a force generated by differences in electric charge of two particles.

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1 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.

2 ecosystem
n.生态系统
参考例句：
This destroyed the ecosystem of the island.这样破坏了岛上的生态系统。 We all have an interest in maintaining the integrity of the ecosystem.维持生态系统的完整是我们共同的利益。

3 gut
n.[pl.]胆量；内脏；adj.本能的；vt.取出内脏
参考例句：
It is not always necessary to gut the fish prior to freezing.冷冻鱼之前并不总是需要先把内脏掏空。 My immediate gut feeling was to refuse.我本能的直接反应是拒绝。

4 clump
n.树丛，草丛；vi.用沉重的脚步行走
参考例句：
A stream meandered gently through a clump of trees.一条小溪从树丛中蜿蜒穿过。 It was as if he had hacked with his thick boots at a clump of bluebells.仿佛他用自己的厚靴子无情地践踏了一丛野风信子。

5 embryonic
adj.胚胎的
参考例句：
It is still in an embryonic stage.它还处于萌芽阶段。 The plan,as yet,only exists in embryonic form.这个计划迄今为止还只是在酝酿之中。

6 differentiate
vi.(between)区分；vt.区别；使不同
参考例句：
You can differentiate between the houses by the shape of their chimneys.你可以凭借烟囱形状的不同来区分这两幢房子。 He never learned to differentiate between good and evil.他从未学会分辨善恶。

7 epidermis
n.表皮
参考例句：
The external layer of skin is called the epidermis.皮的外层叫表皮。 There is a neoplasm originating in his leg's epidermis.他的腿上有个生长在表皮上的肿瘤。

8 hormones
n. 荷尔蒙，激素名词hormone的复数形式
参考例句：
This hormone interacts closely with other hormones in the body. 这种荷尔蒙与体內其他荷尔蒙紧密地相互作用。 The adrenals produce a large per cent of a man's sex hormones. 肾上腺分泌人体的大部分性激素。

9 elastic
n.橡皮圈，松紧带；adj.有弹性的；灵活的
参考例句：
Rubber is an elastic material.橡胶是一种弹性材料。 These regulations are elastic.这些规定是有弹性的。

10 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》

11 vocal
adj.直言不讳的；嗓音的；n.[pl.]声乐节目
参考例句：
The tongue is a vocal organ.舌头是一个发音器官。 Public opinion at last became vocal.终于舆论哗然。

12 nucleus
n.核，核心，原子核
参考例句：
These young people formed the nucleus of the club.这些年轻人成了俱乐部的核心。 These councils would form the nucleus of a future regime.这些委员会将成为一个未来政权的核心。

13 relatively
adv.比较...地，相对地
参考例句：
The rabbit is a relatively recent introduction in Australia.兔子是相对较新引入澳大利亚的物种。 The operation was relatively painless.手术相对来说不痛。

14 positively
adv.明确地，断然，坚决地；实在，确实
参考例句：
She was positively glowing with happiness.她满脸幸福。 The weather was positively poisonous.这天气着实讨厌。

15 aerobic
adj.需氧的，增氧健身法的，有氧的
参考例句：
Aerobic exercise helps to build up stamina.有氧健身操有助于增强耐力。 Aerobic dance is conductive to the health.有氧舞蹈有助于健康。

16 respiration
n.呼吸作用；一次呼吸；植物光合作用
参考例句：
They tried artificial respiration but it was of no avail.他们试做人工呼吸，可是无效。 They made frequent checks on his respiration,pulse and blood.他们经常检查他的呼吸、脉搏和血液。

17 molecule
n.分子，克分子
参考例句：
A molecule of water is made up of two atoms of hygrogen and one atom of oxygen.一个水分子是由P妈̬f婘̬ 妈̬成的。 This gives us the structural formula of the molecule.这种方式给出了分子的结构式。

18 molecules
分子( molecule的名词复数 )
参考例句：
The structure of molecules can be seen under an electron microscope. 分子的结构可在电子显微镜下观察到。 Inside the reactor the large molecules are cracked into smaller molecules. 在反应堆里，大分子裂变为小分子。

19 forth
adv.向前；向外，往外
参考例句：
The wind moved the trees gently back and forth.风吹得树轻轻地来回摇晃。 He gave forth a series of works in rapid succession.他很快连续发表了一系列的作品。

20 membrane
n.薄膜，膜皮，羊皮纸
参考例句：
A vibrating membrane in the ear helps to convey sounds to the brain.耳膜的振动帮助声音传送到大脑。 A plastic membrane serves as selective diffusion barrier.一层塑料薄膜起着选择性渗透屏障的作用。

21 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。

22 anaerobic
adj.厌氧的
参考例句：
Anaerobic respiration occurs only in particularly active tissues such as muscles during severe exercise. 厌氧呼吸只有在处于剧烈运动状态的肌肉等特别活跃的组织中才会发生。 Infection,especially anaerobic infection, is much more apt to occur.感染，特别是厌氧感染很容易发生。