显微数码互动系统在留学生组织学与胚胎学实验课的灵活应用与体会

正随着本校高等教育水平的不断提高和国际化接轨,自2009年开始招收海外留学生,目前本校海外教育学院已有400多名海外留学生。同时伴随着2013年第1期和2016年第2期全国来华留学英语授课品牌课程的申报,组织学与胚胎学课程对留学生的教学一直在不断探索和进步,教学条件和师资力量也一     

组织胚胎学“理论与实验一体化”教学模式的实践与思考

<正>组织胚胎学是一门重要的医学基础课程,属于形态学范畴,主要研究机体的微细结构、相关功能[1,2]以及人体胚胎的发生发育过程。传统教学模式中,教师先讲授理论知识,间隔一段时间后才上实验课致使理论与实践脱节教师在实验课上还要重复理论课内容造成了对授课时间的浪费。理论与实验一体化教学模式是把理论教学内容与实验教学内容融为一体的现场教学模式。我们首次在组织胚胎学教学中,应用理论与实验一体化的教学模     

教育信息化背景下组织学胚胎学全英文课程"三三三制"混合教学模式初探

<正>近年来,随着我国的对外教育交流不断深化,医学专业留学生的规模目前在来华留学生中位居第二~([1-2])。2001年本校设立了留学生全英文班,组织学胚胎学也成为我校最早进行全英文授课的课程之一。在教学过程中,我们发现传统的教学多是老师"满堂灌、全堂点",难以调动学生的学习热情,因此改革势在必行。2016年以来,我们尝试推行"线上线下"混合式教学,课程的79学时被分解为"三三三制"教学模式:     

《组织学与胚胎学》考试辅导教材在课程学习中的作用

为了在有限的教学时数下,更好地实现教好和学好组织学与胚胎学这门课程的目标,我们把多年来在授课、辅导和答疑工作中所得到的经验与教训经过总结归纳,精心编写了《组织学与胚胎学》考试辅导教材,让它在课程学习中起到辅助学习作用。在随访的教师和学生中认为,《组织学与胚胎学》考试辅导教材简明、实用,对组织学与胚胎学课程的学习起着相得益彰的重要作用。它相当教师的无名助手,学生的无名导师,利教利学。     

胚胎学教学的探索与尝试

胚胎学主要研究从受精卵发育为新生个体的过程及其机制,是重要的医学基础课程.胚胎发育涉及空间结构和时间顺序的变化,其内容抽象、复杂,使得胚胎学成为学生公认的难学课程.如何化难为易,使学生能真正学懂胚胎学基本知识是教师所面临的问题.下面是本教研室近几年在5年制本科胚胎学教学中的一些探索与尝试.     

留学生组织胚胎学教学探讨

自2005年以来,我校开始招收巴基斯坦留学生。对留学生采用的是全英语教学,这对中国教师来说是一个极大的挑战。为了进一步搞好巴基斯坦留学生的教学工作,促进对留学生教学的相互交流,我们在组织胚胎学的教学过程中,边摸索教学方法,边总结经验教训,对巴基斯坦留学生组织胚胎学理论课的教学方法进行了初步的探讨。     

留学生胚胎学理论课教学的探讨

通常,刚入校的留学生几乎没有任何汉语基础,而胚胎学课程就开设在第一学年第一学期.如何结合留学生的特点搞好胚胎学的教学工作,特别是理论课教学工作,是各位任课教师面临的一个新挑战.为达到最佳的教学效果,本教研室采取了多种积极有效的方法,现结合近几年来对留学生胚胎学理论课教学的探索与实践,浅谈教学经验与体会.     

我院组织学与胚胎学教学改革初探

2000年1月我院组织学与胚胎学课程经山东省教育厅专家组考察论证，确定为”面向2l世纪山东省普通高校教学改革试点课程”。其教改的核心是：由合堂大班(120人)授课变为实验室规模的(40人)小班上课；由理论、实验分离式教学转变为理论实验一体化模式；由”教师、课堂、书本为中心”的灌输式转变为”以学生为中心”的学导式的教学模式。     

《组织学与胚胎学授课课件》出版

由邹仲之教授主持编制的《组织学与胚胎学授课课件》已由我社出版。该光盘是由我社出版的新世纪课程教 材《组织学与胚胎学(第五版)》相配套的CAI课件,涵盖全书27章,主要供教师进行理论授课使用,也可供学生学 习参考。该课件用PowerPoint软件编制,每章由文字部分和插图部分组成,以文字部分内的图号与相关插图相链     

SPOC混合教学模式在组织胚胎学教学中的应用初探

组织胚胎学是一门重要的医学必修课程,主要研究人体的微细结构、功能及人体发生发育过程,是学习其他相关医学课程的重要基础。同时,这门课程也是医学生最早接触的医学基础课之一,其特点为概念抽象、缺乏逻辑推理性;知识点繁多难记;镜下结构复杂多样。传统教学注重课堂讲授,学生被动接受知识,缺乏主动参与性,学习积极性较差,教学效果一般。     

Recovery of responsiveness of cells of lateral geniculate nucleus of rat

1. Recovery of responsiveness of single cells in lateral geniculate nucleus of rat has been determined in both P and I cells. There are three types of recovery curve among P cells; (a) early recovery, (b) early partial recovery followed by depression and then complete recovery, (c) prolonged depression followed by cyclic recovery. Type (c) is by far the commonest recovery curve. In contrast to the spike in a P cell, the synaptic potential recovers to its full amplitude in about 20 msec. All I cells exhibit similar rapid recovery curves after a prolonged depression.2. Conditioning stimuli applied to visual cortex also produce a prolonged depression in most P cells but I cells can be re-excited at short intervals from cortex. Decortication does not prevent the prolonged depression of the multineuronal response produced by optic nerve stimulation.3. A neuronal model is proposed to explain these observations. It is supposed that I cells (interneurones) are innervated by axon collaterals of the P cells (principal cells, projecting to visual cortex) and that the I cells exert an inhibitory influence on the P cells.     

Modes of Inheritance of Errors of Refraction

Eighteen families in which both parents had refractions within the range of +4·0 D to −4·0 D and axial lengths seen in emmetropia (22·3-26·0 mm) showed coefficients of correlation of the order 0·5 indicative of polygenic inheritance. Such coefficients were seen for axial length (0·407) and for the cornea (0·487), but not for the lens (which is known to be yoked to the axial length). No such coefficients were seen in 19 families in which one of the parents had axial length outside the emmetropic range (nine families with long axes and 10 with short axes).

The pattern of polygenic inheritance for emmetropia (completely correlated optical components) and errors of refraction up to 4·0 D (inadequately correlated components: correlation ametropia) follows that seen in stature and other measurable characters. In contrast the high refractive errors with their abnormal axial lengths (component ametropia) are—like the extremes in stature—pathological anomalies with monofactorial inheritance.

     

Level of functioning of siblings and parents of probands of varying degrees of retardation

A further analysis of already published data supports the position that retardates of low ability level less frequently have retarded siblings, retarded parents, and parents low in occupational level than do retardates higher in ability level. The analysis supports the position that there are two types of retarded individuals, persons retarded as a result of gene or chromosomal anomalies, brain injury, etc., who more frequently occur in the lower-level retardate group, and persons whose retardation represents polygenic segregation, who more frequently occur in the higher-level group.     

Analysis of two types of dopaminergic responses of neurons of the spinal ganglia of rats

It was established, in experiments on isolated spinal ganglia of adult rats in concluons of intracellular recording, that dopamine (1 M/liter) elicits depolarized responses in 61% of neurons, hyperpolarized in 20% of neurons, and depolarized-hyperpolarized in 19% of neurons. The depolarized responses are associated with the activation of D₁ dopamine receptors, and are governed by the shift of cAMP-dependent cation (sodium) channels to the conducting state. The hyperpolarized responses are triggered by the activation of D₂ dopamine receptors, which by means of HTP-binding protein convert the potassium channels to the conducting state. The change in the polarization of neurons with the action of dopamine influences their electrical excitability variously.Translated from Fiziologicheskii Zhurnal SSSR imeni I. M. Sechenova, Vol. 76, No. 6, pp. 739–745, June, 1990.