专业术语—口腔生理学术语L1(英文详解)
Lamella-bone - the microscopic 1 structure of cortical bone gives it the appearance of concentric or parallel plates ( from Latin, lamella, the diminutive 2 of lamina, meaning a plate or leaf).
Lamina propria - the layer of loose connective tissue underneath 3 the epithelium of mucosa, which provides physical and nutritional 4 support.
Lamina-dura - the name given to the radiographic appearance of a dense 5 layer of bone around the tooth root. It represents the dense cortical bone lining 6 the tooth socket 7.
Laminin - an adhesive 8 molecule 9 of connective tissue related to fibronectin andtenascin.
Langherhans cells are active in the immune response of the skin and mucous 10 membrane 11. They act as sentries 12, detecting the presence of foreign antigens on the surface of the epithElium. They do not contain keratin and are thus sometimes called clear cells.
Lectin - a protein molecule which bindson to a specific sequence of sugars. Bacteria may use lectin attachments 15 to bind 13 onto each other or oral surfaces.
Leucocytes - un pigmented (white) cells of the blood. Those with granular cy lasm are neutrophils, eosinophils and basophils. The agranulocytes are lymphocytes and monocytes.
Leucotriens- concerned with signalling between cells of the immune system and a member of the eicosanoid family of hormones 16.
Ligand - a protein molecule which binds 14 to another specific protein molecule. The forces of the bond are week and thus protein-ligand bonds depend on close fit of one molecule to the other, so as to capture as many bonding sites as possible. Ligands are specific for a particular protein. They are found on cell surfaces of microorganisms where they assist in cell adhesion. They are also sights on cell membranes 17 onto which protein messengers attach such ascytokines (see also lectins).
Limbic system - a ring of structures around the thalamus which play a major role in pain as well as other types of behaviour. The limbic system includes the hypothalamus, hippocampus, amygdala, septum and cingulum. The limbic system plays an important role in pain at the level of motivation to avoid it. It thus operates at a slightly higher level than the reticular formation with strong connections to the thalamus and cortex.
Lipid - - large molecules 18 containing hydrogen and carbon which are insoluble in water. Simple lipids consist of long chains of fatty acids. Compound lipids contain phosphoric acid, sugars, nitrogenous bases or proteins, and include the phospholipids, glycolipids and lipoproteins. Steroids may also be classified as lipids.
Lubrication - helping 19 two surfaces to slide over each other.
Lycine - one of 20 aminoacids common in proteins. It is a common amino acid of collagen and like proline must be hydroxylated by ascorbic acid in order to allow the formation of bonds which will hold the triple helix together..
- It's impossible to read his microscopic handwriting.不可能看清他那极小的书写字迹。
- A plant's lungs are the microscopic pores in its leaves.植物的肺就是其叶片上微细的气孔。
- Despite its diminutive size,the car is quite comfortable.尽管这辆车很小，但相当舒服。
- She has diminutive hands for an adult.作为一个成年人，她的手显得非常小。
- Working underneath the car is always a messy job.在汽车底下工作是件脏活。
- She wore a coat with a dress underneath.她穿着一件大衣，里面套着一条连衣裙。
- A diet lacking in nutritional value will not keep a person healthy.缺乏营养价值的饮食不能维持人的健康。
- The labels on food products give a lot of information about their nutritional content.食品上的标签提供很多关于营养成分的信息。
- The general ambushed his troops in the dense woods. 将军把部队埋伏在浓密的树林里。
- The path was completely covered by the dense foliage. 小路被树叶厚厚地盖了一层。
- The lining of my coat is torn.我的外套衬里破了。
- Moss makes an attractive lining to wire baskets.用苔藓垫在铁丝篮里很漂亮。
- He put the electric plug into the socket.他把电插头插入插座。
- The battery charger plugs into any mains socket.这个电池充电器可以插入任何类型的电源插座。
- You'll need a strong adhesive to mend that chair. 你需要一种粘性很强的东西来修理那把椅子。
- Would you give me an adhesive stamp?请给我一枚带胶邮票好吗？
- 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。
- Healthy,skin,mucous membranes,and cilia are natural barriers to many viruses.健康的皮肤，粘膜和纤毛是许多病毒的天然屏障。
- Seromucous glands contain both mucous and serous cells.浆粘液腺既含有粘液性细胞，又含有浆液性细胞。
- 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。
- We posted sentries at the gates of the camp. 我们在军营的大门口布置哨兵。
- We were guarded by sentries against surprise attack. 我们由哨兵守卫，以免遭受突袭。
- I will let the waiter bind up the parcel for you.我让服务生帮你把包裹包起来。
- He wants a shirt that does not bind him.他要一件不使他觉得过紧的衬衫。
- Frost binds the soil. 霜使土壤凝结。 来自《简明英汉词典》
- Stones and cement binds strongly. 石头和水泥凝固得很牢。 来自《简明英汉词典》
- The vacuum cleaner has four different attachments. 吸尘器有四个不同的附件。
- It's an electric drill with a range of different attachments. 这是一个带有各种配件的电钻。
- The waste material is placed in cells with permeable membranes. 废液置于有渗透膜的槽中。 来自辞典例句
- The sarcoplasmic reticulum is a system of intracellular membranes. 肌浆网属于细胞内膜系统。 来自辞典例句
- 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。