医学英语Word格式文档下载.docx
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医学英语Word格式文档下载.docx
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Calci-phosph-
5.hematopoiesis:
Haematopoiesis(fromAncientGreek:
haimablood;
poiesistomake)(orhematopoiesisintheUnitedStates;
sometimesalsohaemopoiesisorhemopoiesis)istheformationofbloodcellularcomponents.
6.platelet:
Platelets,orthrombocytes,arethecellscirculatinginthebloodthatareinvolvedinthecellularmechanismsofprimaryhemostasisleadingtotheformationofbloodclots.Boththrombocytopenia(orthrombopenia)andthrombocytosismaypresentwithcoagulationproblems.Generally,lowplateletcountsincreasebleedingrisksandthrombocytosis(highcounts)mayleadtothrombosis.
7.diaphysis,epiphysis:
Thediaphysisisthemainormidsection(shaft)ofalongbone.Epiphysisisthenameforaroundedendofalongbone.
8.metacarpal:
Thermetacarpusistheintermediatepartofthehandskeletonthatislocatedbetweenthephalanges(bonesofthefingers)distallyandthecarpuswhichformstheconnectiontotheforearm.Themetacarpusconsistsofmetacarpalbones.
9.metatarsal:
Themetatarsusconsistsofthefivelongbonesofthefoot,
10.phalanx:
bonesofthefingersandtoes.femus;
11.Thefemuristhethigh(大腿)bone.Inhumans,itisthelongest,mostvoluminous,andstrongestbone.Itformspartofthehipandpartoftheknee.ThewordfemurisLatinforthigh.
12.spongy;
1:
resemblingasponge:
a:
softandfullofcavities<
spongyice>
b:
elastic,porous,andabsorbent.Therearetwotypesofbonetissue:
compactandspongy.Spongy(cancellous)boneislighterandlessdensethancompactbone.
13.sternum:
Thesternum(fromGreekστέρνον,sternon,"
chest"
orbreastbone)isalong,flatbonelocatedinthecenterofthethorax(chest).Itconnectstotheribbonesviacartilage,formingtheribcagewiththem,andthushelpstoprotectthelungs,heartandmajorbloodvesselsfromphysicaltrauma.Thesternumissometimescutopen(amediansternotomy)togainaccesstothethoraciccontentswhenperformingcardiothoracicsurgery.
14.Thescapulaformstheposteriorpartoftheshouldergirdle.(肩带)
15.Wormianbone-anyofthetinysoftbonesfoundinthesuturesbetweencranialbones
16.Asesamoidisaboneembedded(埋burry)inatendon.Sesamoidsarefoundinseveraljointsinthebody.Inanatomy,asesamoidboneisaboneembeddedwithinatendon.Theyusuallyresemblesesame芝麻seed,hencethename.Sesamoidbonesaretypicallyfoundinlocationswhereatendonpassesoverajoint,suchasthehand,knee,andfoot.Functionally,theyacttoprotectthetendonandtoincreaseitsmechanicaleffect.
17.Atendon(orsinew)isatoughbandoffibrousconnectivetissuethatusuallyconnectsmuscletobone[1]andiscapableofwithstandingtension.Tendonsaresimilartoligamentsexceptthatligamentsjoinonebonetoanother.Tendonsandmusclesworktogetherandcanonlyexertapullingforce.
18.Atendonisastructurethatconnectsmuscletobone.Tendonsarecommonlyinflamedisaconditioncalledtendonitis.
19.Thepatellaorkneecapisathick,triangularbonewhicharticulateswiththefemurandcoversandprotectsthekneejoint.Itisthelargestsesamoidboneinthehumanbody.
20.Ossificationistheprocessofboneformation,inwhichconnectivetissues,suchascartilageareturnedtoboneorbone-liketissue.Thebloodvesselsbringmineralslikecalciumanddeposititintheossifyingtissue.Boneformationisadynamicprocess,withcellscalledosteoblastsdepositingminerals,andosteoclastsremovingbone.[1]Thisprocess,termedboneremodelingcontinuesthroughoutlife.[2]
21.Metabolismisthesetofchemicalreactionsthatoccurinlivingorganismsinordertomaintainlife.Theseprocessesalloworganismstogrowandreproduce,maintaintheirstructures,andrespondtotheirenvironments.Metabolismisusuallydividedintotwocategories.Catabolism分解breaksdownlargemolecules,forexampletoharvestenergyincellularrespiration.Anabolism,合成ontheotherhand,usesenergytoconstructcomponentsofcellssuchasproteinsandnucleicacids.metabolically:
Of,relatingto,orresultingfrommetabolism
22.Aboneisnevermetabolicallyatrest.Itconstantlyremodelsandreappropriatesitsmatrix.
23.bonematrix:
Theintercellularsubstanceofbonetissueconsistingofcollagenfibers,groundsubstance,andinorganicbonesalts.
24.distal/proximal:
proximal<
proximus,Latin,thenearest,Proximalistheoppositeofdistal.Proximalasananatomicalpositionmeansnearestthecenterofthebody,oratthebeginningofastructure.Theproximalpartoftheureterisnearthekidney.Thedistalpartoftheureterisnearestthebladder.Bonesaresaidtoarticulateproximallyanddistallywithotherbones.Theproximalendofthethighbone,thefemur,formsajointwiththesocketofthehipbone.Inanatomy,distalmeansremotefromthepointofattachment,orawayfromthecenterofthebody.Forexample,eachfingerandtoeexceptforthethumbandbigtoehasthreeendbonescalledphalanges.Thedistalphalanxofafingeristhebonefarthestawayfromthecenterofthebody,soit'
stheverylast,outermostboneatthetipofthefinger.
25.shaft:
themainbodyorthetrunk
26.clot:
tocoagulate.Bloodclot(thrombus)istheresultofcoagulationofblood.
27.osteoclast:
Anosteoclast(fromtheGreekwordsfor"
bone"
and"
broken"
)isatypeofbonecellthatremovesbonetissuebyremovingitsmineralizedmatrix.Thisprocessisknownasboneresorption.
28.osteoblast:
Anosteoblast(fromtheGreekwordsfor"
germ"
orembryonic)isamononucleatecellthatisresponsibleforboneformation.Boneisadynamictissuethatisconstantlybeingreshapedbyosteoblasts,whichbuildbone,andosteoclasts,whichresorbbone
29.homeostasis:
Homeostasis(fromGreek:
ὅμος,hó
mos,"
equal"
;
andιστημι,istēmi,"
tostand"
lit."
tostandequally"
)isthepropertyofeitheranopensystemoraclosedsystem,especiallyalivingorganism,thatregulatesitsinternalenvironmentsoastomaintainastable,constantcondition.Multipledynamicequilibriumadjustmentsandregulationmechanismsmakehomeostasispossible.
30.bonespur:
Abonespur(osteophyte)isabonygrowthformedonnormalbone.Mostpeoplethinkofsomethingsharpwhentheythinkofaspur,?
butabonespurisjustextrabone.It'
susuallysmooth,butitcancausewearandtearorpainifitpressesorrubsonotherbonesorsofttissuessuchasligamentsortendonsinthebody.Commonplacesforbonespursincludethespine,shoulders,hands,hips,knees,andfeet.
31.Paget'
sdiseaseisachronicbonedisorderthatisduetoirregularbreakdownandformationofbonetissue.Paget'
sdiseasecancausebonestoexpandandweakenandmayresultinbonepain,arthritis,bonedeformityandfractures.Itisusuallylocalizedtoonebonebutcaninvolvemanybones.TheactualcauseofPaget'
sdiseaseisnotknown.Paget'
sdiseaseisalsoknownasosteitisdeformans.
32.phagocytose:
Toperformphagocytosis,denotingtheactionofphagocyticcells.Synonym:
phagocytise.
33.gastrointestinaltract:
Thedigestivetract(alsoknownasthealimentarycanal)isthesystemoforganswithinmulticellularanimalsthattakesinfood,digestsittoextractenergyandnutrients,andexpelstheremainingwaste.ThemajorfunctionsoftheGItractareingestion,digestion,absorption,anddefecation.
34.Growthhormone(GH)isaproteinhormonesecretedbythepituitaryglandwhichstimulatesgrowthandcellreproduction.
35.Thepituitarygland,orhypophysis,isanendocrineglandlocatedatthebaseofthebrain.Thepituitaryglandsecreteshormonesregulatinghomeostasis.Acromegaly(inadult)andgigantism(inchildren)arehormonaldisorderthatresultswhenthepituitaryglandproducesexcesshumangrowthhormone.Dwarfism,pituitary:
Dwarfismcausedbyalackofgrowthhormone,usuallyduetomalfunctionofthepituitarygland.Childrenwithgrowthhormonedeficiencymaygrownormallyforthefirsttwotothreeyearsoflifebuttheythenfallbehindtheirpeersinheight.
36.Calcitoninisahormoneknowntoparticipateincalciumandphosphorusmetabolism.
37.Thethyroidisoneofthelargestendocrineglandsinthebody.Thisglandisfoundintheneckinferiorto(below)thethyroidcartilage(alsoknownastheAdam'
sappleinmen).Thethyroidcontrolshowquicklythebodyburnsenergy,makesproteins,andhowsensitivethebodyshouldbetootherhormones.Thethyroidparticipatesintheseprocessesbyproducingthyroidhormones,Thesehormonesregulatetherateofmetabolismandaffectthegrowthandrateoffunctionofmanyothersystemsinthebody.Thethyroidalsoproducesthehormonecalcitonin,whichplaysaroleincalciumhomeostasis.Thethyroidiscontrolledbythehypothalamusandpituitary.TheglandgetsitsnamefromtheGreekwordfor"
door"
aftertheshapeoftherelatedthyroidcartilage.Hyperthyroidism(overactivethyroid)andhypothyroidism(unde
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