Hexamethonium_Bromide_COA_16722_MedChemExpress

莽草酸可用于出口鸡场【产品简介】莽草酸存在于大量高等植物或微生物中。

众所周知的抗流感新宠“达菲”就是通过莽草酸进一步衍生化得到的。

因其口服吸收好，生物利用度高，抗病毒效果可靠，使其在流感流行期间，全球掀起了抢购的热潮。

【分子结构】化学式：3,4,5-三羟基-1-环己烯-1-羧酸分子式：C7H10O5分子量：174.15【性状】类白色精细粉末，易溶于水，在水中的溶解度为18g/100mL，难溶于氯仿、苯和石油醚，气味辛酸。

【药理作用】莽草酸可以直接通过影响花生四烯酸代谢，抑制血小板聚集，抑制动、静脉血栓及脑血栓形成发挥作用，莽草酸还具有抗炎、镇痛作用。

莽草酸可以作为抗病毒和抗癌药物中间体，在体内莽草酸还可转化为多种对病毒、细菌和癌细胞有抑杀作用的物质。

抗菌抗肿瘤作用，1987年有报道中提到日本学者发现莽草酸的一种化合物对海拉细胞株（HeLacells）和埃希利腹水癌（Ehrlichascitescarcinoma）有明显的抑制作用，并能延长接种白血病细胞L1210的小鼠的存活时间，而且毒性相对较低，其抑制作用主要与硫氢化物反应有关。

流感病毒在宿主细胞内复制表达和组装之后，会以出芽的形式突出宿主细胞，但与宿主细胞以凝血酶-唾液酸相连接，神经氨酸酶以唾液酸为作用底物，可催化唾液酸水解，解除成熟病毒颗粒与宿主细胞之间的联系，使之可以自由移动侵袭其他健康的宿主细胞。

如果抑制神经氨酸酶的活性可以阻止病毒颗粒的释放，切断病毒的扩散链，从而抑制病毒的复制。

在发病后24小时内使用，病程会减短20%-30%，病情会减轻25%，作为预防用药，对流感病毒暴露者的保护率在60%-80%之间。

另外还可以通过阻断病毒的糖蛋白合成及抑制病毒成熟后从细胞的释放达到抗病毒效果。

口服迅速被吸收，进入血液循环，2～3小时后达血药峰浓度，其在体内可以定向分布至肺部、支气管、鼻窦等部位。

【特点】药效更持久：本品在体内发挥药效的同时，其体内衍生化产物同样具有抗病毒作用，因而药效稳定时间更长。

11种藻毒素标准物质
以下是一些常见的藻毒素标准物质：
1. 石油醚提取物（PSP）：用于检测贝类中的剧毒贝毒素。

2. 着丝菌素A（STX）：一种常见的病原体鞭毛虫产生的神经毒素。

3. 美腐菌酸（DTX）：常见于其他多胜脱属海洋贝螺毒素类。

4. 双胺李斯特菌毒素（DAT）：一种常见的芽孢李斯特菌产
生的毒素，可导致食物中毒。

5. 溶血李斯特菌毒素（LTX）：常见于多个李斯特菌品系。

6. 土霉毒素B1（T-2）：一种常见的真菌产生的毒素，对人和动物有毒。

7. 藻酸（DA）：常见于赤潮藻类中的毒素。

8. 丙烯酸（AA）：一种常见的贻贝毒素。

9. 亚硝基异丁酸（NIAX）：常见于蓝藻中的毒素。

10. 新蜱（NSP）：一类常见的神经毒素，来源于贝类。

11. 米字纹菌酸（GTX）：一种常见的贝毒素，来源于赤潮藻
类中的。

请注意，这只是一些常见的藻毒素标准物质，还有其他许多藻毒素种类，具体的种类和数量取决于所用的标准物质的目的和应用领域。

替莫唑胺temozolomide【药物别名】Temodar【分子式成分】化学名为3，4-二氢-3-甲基-4-氧代咪唑并［5，1-d］-1，2，3，5-四嗪-8-酰胺。

原料药为白色或浅棕色/淡粉色粉末，相对分子质量为194.15。

pH＜5下稳定，pH＞7时易分解，因此可口服给药。

【制剂规格】本品有4种规格，分别为每粒胶囊含替莫唑胺5，20，100或250 mg，药用墨水印记，印记颜色依次为绿色、棕色、蓝色和黑色。

琥珀色玻璃瓶装，各规格均有5粒和20粒装两种包装。

【药理毒理】替莫唑胺用于治疗成人顽固性多形性成胶质细胞瘤，于1999年8月11日通过FDA批准，在美国上市。

替莫唑胺不直接发挥作用，在生理pH下，它经非酶途径快速转化为活性化合物MTIC［5-(3-甲基三氮烯-1-)咪唑-4-酰胺］。

人们认为MTIC的细胞毒性主要源于其D NA烷基化(甲基化)作用，烷基化主要发生在鸟嘌呤的O6和N7位。

【毒理作用】遗传毒性：替莫唑胺对体外细菌有致突变作用（Ames试验），对哺乳细胞染色体有致裂变作用（人外周血清淋巴细胞试验）。

生殖毒性：目前尚未进行替莫唑胺的生殖毒性研究，但大鼠和狗的重复给药毒性研究表明，大鼠和狗给药剂量分别为50mg/m2和125mg/m2（按体表面积计算，分别约相当于最大推荐人日用量的1/4和5/8）时，本品对动物睾丸有毒性，表现为合胞体细胞（即未成熟精子）出现和睾丸萎缩。

致癌性：尚未进行替莫唑胺的常规致癌试验。

给大鼠每隔28天连续5天给予替莫唑胺125mg/m2 （按体表面积计算、与最大推荐人日用量相当），给药3个周期后，雌性和雄性大鼠均产生乳腺癌。

以25、50、125mg/ m2 (按体表面积计算，大约相当于最大推荐人日用量的1/8到1/2)给药6个周期后，所有剂量组动物均出现乳腺癌：高剂量组在心脏、眼、精囊、唾液腺、腹腔、子宫及前列腺等组织出现纤维肉瘤，还出现精囊癌、心脏神经鞘瘤、视神经癌、哈德氏腺癌，另外可见动物皮肤、肺、垂体、甲状腺等组织产生腺瘤。

中药学切片PB001PB002 绵马贯众叶柄基部横切PB003 掌叶大黄根茎横切PB004 何首乌块根横切PB005 威灵仙横切PB006 川乌横切PB007 怀牛膝横切PB008 川牛膝横切PB009 银柴胡横切PB010 黄连根横切（味连）PB011 北豆根横切PB012 山豆根横切PB013 甘草根横切PB014 地黄根横切PB015 赤芍根横切PB016 桔梗根横切PB017 玄参根横切PB018 丹参根横切PB019 防风根横切PB020 黄精根横切PB021 知母根横切PB022 射干根横切PB023 苦参根横切PB024 白芷根横切PB025 地榆根横切PB026 黄芪根横切PB027 人参根横切PB028 龙胆根横切PB029 黄芩根横切PB030 柳叶白前根茎横切PB031 南沙参根横切PB032 巴戟天根横切PB033 苍术根横切PB034 直立百部横切PB035 石菖蒲根茎横切PB036 天麻块茎横切PB037 黄丝郁金横切PB038 莪术横切PB039 麦冬根横切PB040 半夏根横切PB041 当归根横切PB042 党参根横切PB043 大黄根横切PB044 川贝母根茎横切PB045 白术根茎横切PB046 三七根横切PB047 天门冬根横切PB048 北细辛根横切PB049 北柴胡根横切PB050 野葛根横切PB051 板蓝根横切PB052 关木通茎横切PB053 鸡血藤横切PB054 沉香三切面PB055 络石藤茎横切PB056 青风藤横切PB057 黄连茎横切PB058 连翘茎横切PB059 酸枣茎横切PB060 绞股蓝茎横切PB061 荆芥茎横切PB062 穿心莲茎横切PB063 肉桂（树皮）横切PB064 杜仲皮横切PB065 川黄柏横切PB066 地骨皮横切PB067 香加皮横切PB068 厚朴（树皮）横切PB069 秦皮横切PB070 番泻叶横切PB071 大青叶横切PB072 地黄叶横切PB073 枇杷叶横切PB074 木通叶横切PB075 绞股蓝叶横切PB076 金银花叶横切PB077 栀子叶横切PB078 慈姑气生叶横切PB079 杜仲叶横切PB080 金银花花冠表面装片PB081 金银花雄蕊整体装片PB082 枸杞花纵切PB083 荆芥花横切PB084 枸杞花横切PB085 车前草花纵切PB086 月季花瓣横切PB087 小茴香分果横切PB088 牵牛子横切PB089 阳春砂种子横切PB090 五味子横切PB091 山楂果实横切PB092 苦杏仁种子横切PB093 枸杞果横切PB094 慈姑胚纵切PB095 罂粟果实横切PB096 合欢种子横切PB097 无花果果实纵切PB098 桃仁横切PB099 蛇床子分果横切PB100 瓜蒌皮横切PB101 薄荷叶横切PB102 薄荷茎横切PB103 薄荷茎纵切PB104 麻黄茎横切PB105 藿香茎纵切PB106 藿香茎横切PB107 益母草茎横切PB108 穿心莲叶横切PB109 淡竹叶横切PB110 石斛茎横切PB111 五倍子切片PB112 车前草根纵切PB113 灵芝菌盖纵切PB114 灵芝菌盖横切PB115 鹿茸纵切PB116 徐长卿根横切PB117 玉竹根茎横切PB118 商陆根横切PB119 天花粉根横切PB120 狼毒根横切PB121 虎杖根横切PB122 草乌根横切PB123 白头翁根横切PB124 秦艽根横切PB125 紫苏梗茎横切PB126 茜草根横切PB127 紫草根横切PB128 紫苑根横切PB130 白花蛇草茎横切PB131 补骨脂果实横切PB132 牡丹根皮横切PB133 祖师麻叶横切PB134 延胡萦叶横切PB135 两三金根横切PB136 两三银根横切PB137 川芎根横切PB138 南星根横切PB139 泽漆根横切PB140 红藤茎横切PB141 细叶十大功劳叶横切PB142 仙鹤草根横切PB143 桔梗茎离析装片PB144 天竺葵离析装片PB145 一品红茎纵切PB146 扶芳腾茎横切PB147 鱼腥草茎横切PB148 火炭母茎横切PB149 金毛狗脊根横切PB150 金毛狗脊叶柄基部横切PB151 马齿苋茎横切PB152 石微根横切PB153 茵陈蒿茎横切PB154 独活根横切PB155 紫萁叶柄基部横切PB156 浙贝母鳞茎横切PB157 沉香横切PB158 沉香纵切PB159 沉香径向切PB160 三叶木通横切PB161 白木香横切PB162 白木香纵切PB163 白木香径向切PB164 白木香三切面PB165 柿蒂横切PB166 广霍香茎纵切PB167 广霍香茎横切PB168 车前草根横切PB169 艾叶横切PB170 白微根横切PB171 白芍根横切PB172 赤芍根横切PB174 远志根横切PB175 甘遂根横切PB176 藁本根横切PB177 重楼根横切PB178 山药根横切PB179 姜黄根横切PB180 高良姜根横切PB181 广防己根横切PB182 白及根横切PB183 川续断根横切PB184 仙鹤草茎横切PB185 紫金牛茎横切PB186 金钱草茎横切PB187 川木通茎横切PB188 大血藤茎横切PB189 钩藤茎横切PB190 白花蛇舌草茎横切PB191 侧柏嫩枝横切PB192 合欢皮切片PB193 海桐皮切片PB194 苦楝皮切片PB195 陈皮切片PB196 功劳叶横切PB197 桉叶横切PB198 臭梧桐叶横切PB199 辛夷花蕾纵切PB200 槐米花苞纵切PB201 洋金花粉末装片PB202 蒲黄花粉装片PB203 肉豆蔻果实切片PB204 连翘果实切片PB205 槟榔种子切片PB206 白豆蔻种子切片PB207 石韦叶柄中部横切PB208 石韦叶横切PB209 淫羊霍叶横切PB210 紫花地丁叶横切PB211 马鞭草叶横切PB212 荆芥叶下表皮PB213 佩兰叶上表皮装片PB214 佩兰叶下表皮装片PB215 青蒿叶表皮装片PB216 冬虫夏草虫体横切PB217 冬虫夏草子座横切PB218 马钱子非腺毛切片Chinese pharmacyBacillus subtilisRhizobium meliloti,nitrogen fixing in root of legumeSpirillum volutams,large spirllumStaohylococcusOscillatoriaNostocEuglenaChlamydomonasProtococcusUlothrixCladophoraOedogoniumSpirogyra,one chloroplast in each cellSpirogyra,several chloroplasts in each cellSpirogyra,conjugation,several stagesDiatomsLaminaria japonica,sec.of soriRhizopus,bread mold,development of sporangiaPenicillium,sec,showing conidia on broom–like conidiophores w.m Aspergillus,conidia on spherical conidiophores w.mSaccharomyces,yeast w.m.showing nucleus & buddingPeziza,cup–fungus,sec.of apothecium with asciUstilago tritici,loose smut of wheatUstilago zeae,com smut,sec of pustule showing development of chlamydospores Coprinus,sec.showing basidia & sporesLichen,sec.of vegetative portion of thallusLichen,sec.of apotheciumMarchantia polymorpha,sec.of thallusMarchantia,sec.of cupule with gemmaeMarchantia,gemmae w.m.(vegetative reproduction)Marchantia,sec.of archegonial branch showing archegoniaMarchantia,sec.of antheridial branch showing archegoniaMarchantia,sec.of mature sporophyteMoss,L.S of antheridial cluster with antheridiaMoss,L.S of archegonial head with archegoniaMoss,protonema w.m.Moss,sporophyte attached to the gametophyte w.mFem,sec.of leaf with sporangiaFem,X.S.of rhizomeSalvinia,floating ferm,L.S.of sporocarpsFern prothallium w.m. of young specimen showing antheridia onlyFern prothallium w.m. of young specimen showing archegonia onlyFern prothallium typical specimen showing both antheridia ＆archegonia w.mFem prothallium,w.m.young sporophyteGinkgo.X.S of leaf ＆petiolePinus,X.S of leafPinus,first year stem X.SPinus,mature wood X.SPinus,mature wood rad secPintus,mature wood tang.secPintus.macerated wood tracheids ＆other cells isolatedPinus,cec. Of? young male strobilus showing meiosisPinus,median L.S. of male strobilus with axis, microsporophylls ＆microsporangiums Pinus,X.S of male strobilus with microsproesPinus,w.m. of mature pollen grainsPinus,L.S. of young female cone showing bracts ＆ovuliferous scales bearing ovules Daucus,carofa,X.S. of fleshy tap rootHelianthus,sunflower X.S. of mature rootCuscuta,sosser,onhost X.S.showing haustoriumRanunculus,X.S. of young root showing protoxylem ＆protophloem Ranunculus,X.S. of mature root showing metaxylem ＆radial bundle typeVicia,L.S. of root-tip for mitosisVicia faba,kidney bean,L.S. of young root tip showing root capVicia faba,X.S.of young root showing root hairVicia,X.S. of older rootVicia faba,X.S.of root showing development of lateral rootsIpomoea,sweat potato.X.S. of fleshy root showing food storageAllium,onion,L.S. of root-tips showing every stage in cell division ＆mitosis Allium,root-tip X.S. at several different levelsOrchid.X.S. of aerial rootZea mays,com.L.S. of root tip showing root cap etcZea mays,com.L.S. of root.polyarch arrangementRice.X.S. of root showing aerenchymaTriticum,wheat,X.S. of rootCuscuta,pumpkin.X.S. of stem,best type for study of phloem,showing sieve plates etc Cuscuta,L.S. of stem,showing sieve tubes etcHelianthus. Sunflower stem X.S. showing typical dicot stemHelianthus,sunflower stem.L.S.Pelargonium,geranium,X.S. of young stemPelargonium.X.S. of old stem showing secondary vascular tissue ＆corkCotton,stem X.SRicinus,caster bean,X.S. of stem showing typical vascular structureBuxus L.S. of stem tip showing meristematic tissueMymphaea,water lily,X.S.of aquatic stem showing air chamberNymphaea,water lily,X.S. of aguatic stem showing reduced vascular tissue ＆sipcular cells Solanum,lrish potato,X.S. of mature tuber stainted for starch grainsTilia,basswood,X.S. of lst year stemTilia,X.S. of 2 year stemTilia,X.S. of 3-year stemTilia,X.S. of older stem(4 or 5 years)showing mature structure with annual ringsTilia.L.S. of older stem(4 or 5 years)Tilia,macerated wood,showing individual wood fibersSalix,willow.X.S. of stemNerium stem X.SSambucus,elder,sec.of bark with lenticelZea mays,com,X.S.of stem showing typical monocot stemZea,stem L.SZea X.S.of young stem enclosed in sheath,leavesRice X.S. of stemTricicum,wheat,X.S. of stem showing few scattered bundlesLeaf bud L.S.showing liaf developmentPittosporum,X.S.ofa typical dicot leafCotton,leaf X.SVicia,dicot leaf, w.m.of epidermis showing stomataNerium leaf X.S.showing sunken stomata pits cuticle etcNicotiana,tobacce X.S.of leaf with glandular hairsPelargonium,geranium,X.S.of leaf showing cystolith in a xerophyteFicus,rubber plant,X.S.of leaf showing cystolith in a xerophyteNymphaea,water lily,X.S.of floating leaf showing spongy tissue, air chambers ＆spicular cells Allium,onion,w.m.of epidermis showing cells ＆nucleiLris,w.m.of epidermis shoing stomata）Lilium,X.S.of a typical monocot leafZea mays,com,X.S.of liaf showing separate bundlesTriticum,wheat.X.S.of leaf(grass type)Rice,X.S.of leafCapsella,sec.of developing flower spike showing various staegs in the development of the floral partsLilium,X.S.of typical monocot flowerPollen types w.m. of a great variety of pollens,mixedPollen tubes w.m.of germinated pollenZea mays,corn.L.S.of kernel through embryoTricicum,wheat,L.S.of endosperm showing stored foodRicinus,castro bean,X.S.of endosperm showing stored foodDiospyros,endosperm section showing plasmodesmaCapsella,L.S.of ovule with embryo at early stage showing origin of plerome.periblem ＆dermatogenCapsella,L.S.of embryo with cotyledons just differentiatingCapsella,L.S.of embryo with young cotyledonsCapsella.L.S.of mature embryo with cotyledonsLilium,X.S.of anther showing pollen grainsLilium,L.S.of anther showing pollen chambersgrainsLilium,X..S.of very young anther showing early sporogenous tissueLilium,X.S.of young anther showing microspore mother cellsLilium,X.S.of anther with microspore mother cells in prophaseLilium,anther sec.showing lst division (heterotypic)in microspore mother cellsLilium anther sec.showing second division(homeotypic)Lilium sec.of anther showing teradsLilium sec.of anther showing pollen grains at time of shedding(2-cell stage)Lilium,w.m. of mature pollenLilium,L.S.of style &stigma,showing pollen grainsLilium,X.S.of of ovary showing general structure & arrangement of of ovulesLilium,X.S.of.young ovary showing ovules with megaspore mother cells(uninuclear embryo sac Lilium,X.S.of ovary,ovules showing first division of megaspore mother? cell.heterotypic division Lilium,X.S.of ovary,ovules showing binucleate embryo sac.Capsella,L.S.of embryo with cotyledons just differentiatingEuglenaPlasmodium vivax,parasite of benign tertian malaria blood smearparamecium stained for general structure two different stainingtechniquesParamecium,various stages of fissionParamecium,various stages of conjugationParamecium,stained to show ciliaProtozoa mixed speciesHydra,extended specimen showing general structure w.m.Hydra,with bud w.mHydra,XS.showing detailed structure of ectoderm &endodermHydra X.S.through testisHydra X.S.through ovaryHydra L.S.through hypostome & basal diskHydra L.S.through adult &budHydra w.m. of tentaclesPlanaria with intestines injected&stainedSchistosoma japonicum,blood fluke,male w.mSchistosoma japonicum,blood fluke,female w.mSchistosoma japonicum,male&female in copulaSchistosoma japonicum,ova w.m.Schistosoms japonicum,miracidia w.mSchistosoma japonicum,cercaria w.mTaenia solium human tapeworm,scolex,w.mTaenia solium,ova w.mTaenia hydatigena,mature proglottidAscaris X.S.of male in regionof sex organsAscaris X.S.of female in region of sex organsAscaris,ova w.mAscaris,an excellent slide to demonstrate animal mitosisNereis,parapodium w.mEarthworm(pheretima)X.S.back of clitellumEarthworm,X.S.selected to show setaeEarthworm,X.S.through clitellumEarthworm,median L.S.of anterior endClam gill X.S.showing general structureAphis gossypii,w.m.Daphnia w.m.of fall female,with ephippiumCyclops w.m.with egg sacsCulex,common house mosquito,female w.mCulex,common house mosquito,male w.mCulwx,common house mosquito,larva w.mCulwx,common house mosquito,pupa w.mButterfly,w.m.of sucking tube (Siphoning type)Mosquito heads,male & female on same slide long slender piercing sucking type w.mHoney bee mouth parts (lapping type)House fly proboscis (sponging type)Cricket wings,showing file &scraper w.mHouse fly wing &halteris(rudimentary under wing )w.m.Honey bee wings,hooks&ridge forlocking wings together in flight w.mButterfly,wing scales,portion selected to show detailsHoney bee,three legs showing eye brush,antenna cleaner,pollen basket,pollen comb etc w.m. Butterfly,wing scales,portion selected to show detailsGrasshopper jumping leg,w.m.Mantis w.m.of front leg,usedfor graspingInsect legs,four typical legs on each slide(jumping,grasping,digging &swimming )showing adaptationsAmtenna types five kinds(plumose,pectinate,aristate,lnmellate,moniliform)Gizzard,cricket,flat mount of lining showing pattern of chitinous teethPrawn eye L.S.through ommatidiaCornea,flat mount to show facetsInsect trachea,w.m.showing cellular structure tracheal rings &fine branchingMalpighian tubules,grasshopper,w.m.Striated muscle,grasshopper,X.S.&L.S.on each slideGrasshopper,sec.of testis showing mitosisAmphioxus(Branchiostoma )w.m.of mature small specimenAmphioxus X.S.through mouthAmphioxus X.S.through pharynx,anterior to the gonads,showing gills Amphioxus X.S.through posterior portion of pharynx.to show gonads Amphioxus X.S.of intestinal region,anterior to the atriopore Amphioxus X.S.of intestinal region between atriopore&anus Amphioxus X.S.of tailAmphioxus X.S.through male &female specimens in region of gonads Amphioxus X.S.of pharynx,intestinal region & tail on one slideFrog small intestine,cross sectionFrog skin,section showing serous gland & pigment cells etcFrog skin flat mount to show pigment cellsSquamous epithelium scrapings from human mouthSquamous epithelium amphibian epidermisStratified squamous epitheliumCuboidal epitheliumSimple columnar epitheliumPseudostratified ciliated columnar epithelium from trachea Columnar epithelium macerated,intestinal mucosaCiliated epithelium macerated,mouth epithelium of frogCiliated epithelium ,sec.of clam gillTransitional epithelium,wall of bladderMitochondria sec.of liverMitochondria,kidneyGolgi apparatus in epithelial cells of intestineWhite fibrous tissue L.S.of rat tail showing rows of tendon cells Areolar connective tissue,white & elastic fibers &interstitial cells Mucoid tissue,from umbilical cordReticular tissue,trom lymph gland,bielschowski stainAdipose tissueHyaline cartilage,rabbitElastic cartilageFiber -cartilageBone,human,ground thin X.SBone,human,ground thin L.S.Bone,developing,cartilage,type,joint of finger or head of femur of fetus Bone,developing,developing ,membrane type,skull,of foetal head Blood,fishBlood,frogBlood,chickenBlood,pigeonBlood,sparrowBlood,human,Wright s stainBlood,human,H.&EBlood,rabbitStriated muscle,teased preparation showing whole fibres,nuclei,fibrillae,striations Striated muscle.X.S.& L.S.showing nuclei,fibrillae & striationsSmooth (involunatry )muscle,teased preparationSmooth muscle ,X.S.& L.S.Hiatr,uscle,teased preparation showing branching character striations &intercalated disks Heart muscle L.S.showing intercalated disksMuscle & tendon L.SNerve cells,section spinal cord,motor nerve cells,silver impregnatedPyramidal cells,cerebrum Golgi stainPurkinje cells,cerebellum,Golgi stainNerve X.S.& L.S.,H. & ESpinal ganglion,L.S.,H.& E.showing nerve fibers & nerve cellsSpinal ganglion,human L.S.Bielschowski silver stainedMotor nerve endings in intercostal muscles,gold impregnatedTongue,rabbie sec.showing taste budsTongue,cat L.S.showing thick horny layerParotid gland,a purely serous glandSublingual gland,a mixed glandPalatine tonsilEsophagus X.S.dog upper region showing esophageal.GlandEsophagus & trachea L.S.of both organsLarynx oesophagus L.S.of both organsEsophagus & stomach L.S.showing junctionBody of stomach,sec,of wall showing typical fundic glandsStomachus pyloricus,sec.from lower portion of the stomachStomach & duodenum L.S.of the junctionDtomach X.S.showing Brunner s gland & intestinal glandsJejunum,X.S.typical slide for intestine with villiLleum,X.S.showing aggregated lymphoid nodules in mucosaLarge intestine ,X.S.Appendix,human,X.S.Liver ,humanLiver,pig,fibrous trabeculae between lobulesLiver ,rabbit,stained to show glycogenGall bladder,X.SBile duct,X.SPancreas,secreting acini & islands of langerhansTrachea,X.S.ciliated epithelium,cartiage & fibrous tissreTrachea,L.SLung,human,general structureLung,rabbit injectedLung rabbit,thick sec,of pattern of alveoli,in relation of bronchiolesHeart,rat X.S.through atrium cordisHeart,rat,L.S.Aorta,human X.S.H.E.& elastic tissue stainArtery,& vein,elastic tissue stain as aboveVena cava,X.S.elastic tissue stainSpread of rat mesentery,stained to show blood vesselsKidney,human,sec.cortex & medullar with glomerulus tubuleskidney,guinea-pig L.S.of whole organ through pelvisKidney,rabbit,section,blood vessels injectedUreter,X.S.Urinary bladderOvary,rabbit,ses.for general structure,numerous developing eggsUeerine tube (oviduct),human,sec,through ampullaUterus,X.S.of entire uterus of rabbit ,showing all coatsPlacenta,human,sec.showing chorionic villi,etc.Umbilical cord,human X.STestis,human,showing general structureSpermatozoa,human sperm smearBull,sperm smearSheep,sperm smearRabbit testis,fixed &stained for mitosis,best slide for spermatogenesis Rabbit,sperm smearGuinea pig testis,fixed & stained for mitosis,Best slide for spermatogenesis Guinea pig ,sperm smearEpididymis,tubules filled with SpermatozoaVae deferens,human,X.SProstateCerebrum,rabbit,impregnated with silverCerebellum,rabbit,impregnated with silverWhole brain,rabbit L.S.Spinal cord,silver impregnated X..S.showing motor cell nerve fiberEar,internal cochlea (organ of corti)guinea pigEar,internal near median sec.of guinea pig cochleaEye,cornea,human fibrous tissue,stratified epitheliumEye ,iris,radial secRetina sec,humanLacrimal gland, human,a typical serous gland。