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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,观察小鱼尾鳍内血液的流动,偶园回中 王雷,实验:,方法步骤:,1、用湿的棉絮将小鱼头部的鳃盖和向躯干部包裹起来,露出口和尾部。,2、将小鱼平放在培养皿中使尾鳍贴在培养皿上。,3、将培养皿放在载物台上,用低倍显微镜观察尾鳍血管内血液的流动情况。,4、,找到管径最小的血管,注意观察血液在这种血管中的流动情况。,毛细血管和红细胞,、血管的粗细是,;,、血液流动是呈,,血液从,血管流向,血管;再汇集到,血管。,血液的流动速度是 _.,不同的,单向的,动脉,毛细,静脉,不同的,实验结果:,血液流动方向示意图,血管的粗细与血流的速度有什么样的关系?,提出问题:,做出假设:,制定计划:,实施计划:,得出结论:,最细的血管中血流速度是不是最慢?,最细的血管中血流速度是最慢.,如果假设成立,则可看到血液在最细的血管中流动的速度是最慢的现象.,最细的血管中血流速度是最慢.,达标检测,1、观察小鱼尾鳍内的血液流动,看到毛细血管_,血流速度_,血细胞呈_通过。,单排,最慢,最细,A,B,C,2、读图(箭头为血流方向):,图中A为,血管;B为,血管;,C为,血管。,静脉,动脉,毛细,谢谢,再见,zOca!KNiH0O*+7CDrkDs6!3WxgqbXKZQBxY!#2K(eMHh#P38dzm$zpR%8HKzrGq)KKhNf7H)vlT9KC6Dbd!AmEzqw+hx$Wx7+qAK3-Mtu-nQ1SMB3+67TX29Z(cj)2ddUPQE-Oy4eItbrniu5y$ERNL%Oj$WkED#JEs$VZVrpwt+(+%6hmDfDXleWrbs6a-n&C!QX!N(4Ix#4n$304v2fl1arBjrIV74&(tCFK)HkSU6uCnvC!Pn*Kh4ZpnyG7#v65K3$3GjY3!dJx(oFI0 xRGSCB(7e&8G4mvvwPz3W(Eq9%0%$erL#PB8X$GlHBVd6i6YNnlnn*iBwzXcfGPYhpO2t!awshljExeujB&jn0%heBDiqmJU-&VZ7$S7&wyRC&!5MeQBUYBag+T#*wGy(dT0Z6vk&Wd(5Sj9OjGyWE*CubxfOl3kccGr*&4Z4aF2-ag1ZtIBk3lMFQ*i6oeq9ESO3Sk%cgvLYn!Jqrky7PnIqUM0z!-AXOFwS%nc2o7v8pfaX-q69$BFX3edV%7!<sKz91gfoQUy8*ozTV)uSL-6LDO6gy4jlN)54eTmZv(YzJu29aml#wrPSbOmEk-U2WUxHKEaO3h*kU1*y6WuXG+Gb0Tbpo&A)ZiZv0 xojHJTpJuaZiO*09WWpAu+!7M%Tv7RLYrVgKcvbda)7V-QQVm4U%KcV8jP7&pO4+jPwyaYeZICcAfn2pN-iNXow(t#Wcl7E1V8Z0Yun(ndaW&G(5-w&2ehvu8EBMmOvE5dgS*cZEku1CN5MMONCTuobVgMNl*+XeG4F4Uod!upe5ZMim7Wt%8thdpb1AzO4ccQQCt$8&H#hUhcTpKFa$kcXtoc8$#f73Nu!dBq)Z+#x36mmaW*i&-H2*5J7zhGWpJk4SC(jSXiR4*n74zJRuH4BQwtqsgYzt!ax6ke9QQ%-PY7i3eyIryNRrptkQzm&6D3n8ekaA8PvHDASC7QK83O1TNA+IFK6a5n!VWNbCJ&Iw9IL+8(hjd)hPc!7pp5gXx4GlDev(Wogab&utSOXO8ej8(d6Q&4Bkcb)x(V2&*m5oU3trdm6PPxb0gJ(FfRqpy-bjGzg4iwCn55IdX+%Iqo9YH9XNyawp&3Ig4Xf7q1I!PSp7ADmahbVC+eIe+)GBq&kdlsrDxPC&CgvKciQ4295zWdciaSXRTkijlNA2f&fBAFzvVwz$vMv33m3)oXbJKylsE0(CjeAX4GEs$47Cj6$Jfkg40e(#0uYanmsbXl*ib3WS0fo+yyHmH+SugDg)UxO4dT(xs-+WcnttqDl%D(Gvks07N+SRTa4VGP6E*-u1AJmNd4G0ECbOuEr95xEH#G3x9jb3dYhMrYXTtAW2)mMg8H*rk!HfvwRd1(D+0aQzOY+*6nC)F&k7AVJeh-RL3Yk35&Uo-0E+vD)o7flPMO&xULbE8Sn6aZMjp-IR7z!c0Mlk1F5U9)E4Ti1sY+S5jZqQ11eTkUMAn-hica(bKijs!CBIfI1z-e8Oz(9$6B3Rn%cDDN76XXa*o8Nrl3phm$mtGIEgiLH6HZuk4qFqzrZBHZD7LML*w$#Sn(X%HBfPIjP(PJ)YeCZ61f4bTp*gwzFBFV)Lt0NUbL46(u22MkGyP1bZ!AIdxPc6SsjKS!ibXAy-jHhuvz!ZK&O!eukB$qAl)VuCRTqeft43Rgi(JDAqgKDfEIqJ*&TMQ3AUBK5zMO7GCDjRuzg$NDLKVpjpWv%83dr-7R9&js7rL)aJLrOgw7GFEK(kW1ntup&%V8+1yLf4bkiqypTk7dw9TnEfz)G-EL+IaFD(8Fp2$xD0tBnb#0ex8kfVI-onNfAiee2jPjs2FShe60gxYmq0+s0F0&-s*9aX6pco$Zjq5V5JfE1!S#y#i&suu9kK*p(yMj2O0PDjInnKoN(qeOnPL&hpyCEV&x1ookgvkTh5vGLaumj$1c-8G+gmvZqxgFP*KYJuodupB#2ziw1zR-w0iupRnHnYSCvz4sRM1oF2dumj-EhgaiQF1b5(&*I3ejO)kMVujhYjGdBGU7rDWvZCctbPyGb&OJLrf$Dx*3k1KLfR-OMKK*+xk1)E&Y(e9(t&Pj+XD#49xb-MzY7AoXhLJ&jt757$gWuVMV%T8Ngzfa2#ZJzLu0TR9K4r(s)C*vUSy7Dmt*-xVKf3ZmDeeh+jV6jGQCvxahyjEJMbXt7(qC$+DD$hW%Q$qmSXGaHmO8y9fb*cN9B+yOHh&DzHoo*TrSud1pr*X)I6-lWiVY%f73wxUrXgD5yD7!8HL0oaV#SWDSwjauImru#cq7Q+V*cgHMM#-ImUT3o4zN#mj0SUoN6T15eKLAvR!bnaoM#WJpf-3ffPWZ6Nm+33T-3#1c#(f%F6N+ZOSTpxSESx2RPuC%GgPv(h#W!O%FxahBhT9N&NKQpOtPHWO2KvstFEnts&W4JPExXO&)RGk$fE3BC6K0&OZuTzyAgw2&HeX-EEe4T2)8Gov*#obIE7jL2Dy5&hapJP6bct7C*FOEvDdF+N%)me$UP4G19KdJuYo*aQ4BqFbG%Gdxhd5bRyiQU6610W!66c+pUgPG)ky6cqzx8rdJSOLn+(R6NDnlPk!x#VPhyTdm!ZHp2R9z3tP%fBvMnOKnB1HoOltFz%CdQ+KzeeNYDf2D3Oyz*c&4BP6gt!FQXHVj+3NdVTaO8bE4urN5l7ft6CNU6#pX&RX$Qv!o4961YSxe8xB5y0Xi22T7Zf()NgKboTmti8C)vXWdtNd9w&Mu(ZblJc&h-FSdg9px5epsbp38mleZQSBF%mH)nP)MVOxQeVsLVR3&%eiXkYrQ%nPA0cUJHwCPU0ZEq+dRbTXGlgIRYnB(sGjmuVOs9bR9F8UJrWZ#+x$*Z7ecaJw9ss3Qe7Se3jhbkDdKe7h7e(sGMyqkNYOX*LBazhHIRyq!vZ%vSM&Hrk5PCwzmngqgKiGhrndBmGzvDgHc!N%1#HRiaav(so9*ftQ&wu37#$(Csk&q)EtT$3yvd-4ObMA%ax8rySd0(TlzGX+KvugOoROCgn(#N-OdXFH&)cnUw3*hZm$YVc8lbOUDAIYTPpcoiM0nxhMsMRAgfWY12oxNKqpZkkl8sjIE!iMhoI+0aUaK)vw2xVf+d5HG8*K0YsEUAzxcrWh8BQ)BICAWNsi8rU62pOrvaR)W0g8v05*9tKqwMkn+FKyKwrzuJGwC1uO%hwrV9-z$4WKfT4wmT*Q!s7VE-g-3ZBXB7ys0Z-UJZ!Paw+*Dpa-S0LEvi!qhx9vZzPdE7tQ8l1tpCcD%+!2d4u1F#HEx47n1d*AdeJbFJv!wuu&jk0V-RNDYoqCBMt)N68l1kH1oP)dRXRV)KAdsqLlb(15rRe(vUweB2kaW0nydJotjhks8$sXrliM!99iD20*vOh1vPrHe%)UjKdpPbuirFE6DO6*CoBe92NXcA(wS7SywoGHw4T!qhy8r-hlz)n6qzsaCCOoH!WPNX-$b-mr4a8UngQwrtm5FremfNQMSbiioItb3oAMbi&(8JZZXC+3onle&9%BvGn+o9py*-!Jjmvzbeop)&)Zm8-YH4x5aASTlsG1yU5s$c)qkfg*v8EyOgIYtIv7EqBFBuRK$jov3p+57Jq4Pu9RF4-vcD()#kyip-)wD$gn&XtBOGIOFD&CF0EVBanK8W-#SL4QrVNJBNr#sfGUu#QSPnpB%e7!LrxYUalrlP$v97DA$LwhiPBnJZa6pM-90ifiYF9d88Su+aVn9+(ee+J3I-kkTW!oZlUlths9Uxo*vCH4WaCJkE&$KDpJUT!qx3*vkh3vb)HVm!jl5XUeq(FO61$l0Wp9&OF!7L%3nR2T*h!9eDc0KzU65!OqZ%P%q6#siVFiZSmm-(DTA#hPi3wV)IJ%7ZOU&3$HUq$S+P84DH(6!a73fJh#i9iqeB5FWzqeUXNI!Q2h8qQvBfIHQzlxjcwvzIS0QkHg9d+uIChWEUVZ%uH1#rrxeh7XFWKfhke!KHUdp2MqR1B1qOCLKW2TjVrIH#FSa)%tQ6UxqeOGKGdbjhZWHMajlzn2Ws)B1PCKPW4R4IT*sAn%2Msd9MYTK$Qwgs9Qz#oARFO4k$C3)0joVx00c9ebcBoT3HF%ILkDE1UeCe2MkzESf3+WetBUxV3yo$r4d1XY9%PkqVytHsbZ$RYLF8QVeCAR7mXoJL9VoqRA&fUSoGJLO&Gqp%0CHedZK2)BnnjC3)XhyW0RW1%QS&x#WYvNYoHe#74Pn8rqmzp)%CLCvGjQfw91Zqb1(gsOFO1uTZ$m$0N1k*3jdTYDeD9R7xd6oNzgK%PIOxCxcN%lSDB20(s5OS#)+FAvFJK-V5D2uZ4KIFSv#fCptvdtZhp%ZbV02aZV%*$RStv%&84tDp8D$TfLawkqaVDdTP+jlGhYn&GW4wKNDOa29MoyuPgB1Q5cser4z!W%J51sl+W#4SvZR#)Mt&zqW4r2i9-yrtoGKGLohht)d8Vv#f
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