Reproductie en Germ Ontwikkeling van Mensen en Dieren. Atlas waardevol voor het geven van seksuele instructie. Reproductieve systemen. Menselijke geslachtsorganen, ei en sperma ontwikkeling, groei van foetus, geboorte. Atlas van 30 transparanten met 104 foto's

No. 8217E Reproduction and Germ Development of Human and Animals. Atlas of 30 OHP Transparencies size 22 x 28 cm, comprising 104 color pictures, mostly with several component figures (drawings, diagrams, tables, anatomical pictures, photomicrographs and macrographs, human photographs) . In strong plastic file with ring-mechanism. - Compilation and text: Prof. Walter Mergenthaler and Dipl. Biol. Christine Himmelein. Reproduction of man and animals. - A series illustrating reproduction from protozoa to man. It will therefore not only be an invaluable aids in biology classes but equally valuable for teaching sex instruction. The beautiful anatomical picture plates have been made by university illustrators specializing in this field. - Asexual reproduction (division) of Amoeba - Asexual reproduction (budding) of Hydra - Sexual reproduction of Hydra - Reproduction of the sea urchin (Echinus) - Fertilization of the sea urchin egg - Reproduction in fishes and salamanders - The female reproductive organs of reptiles, birds and mammals - The reproductive organs of the human male; lateral view of situs and diagram - Testis, t.s. - Seminiferous tubules showing spermatogenesis; t.s. - Testis, epididymis, spermatogenesis; diagrams - Sperm smear - Human hair, egg, and spermatozoa; comparison of sizes - The reproductive organs of the human female; lateral and front view of situs - Ovary; t.s. - Egg development: primary and secondary follicles - Early stage and mature Graafian follicle with germ hillock and egg cell - Mature ovulated egg with corona radiata - Corpus luteum - Human fallopian tube t.s. - Ciliated epithelium of the Fallopian tube; t.s. - The yolk sac and the embryonic development of fishes - The embryonic membranes of chicken, mammals and humans - Wall of human uterus, t.s. - Changes of the endometrium during menstrual cycle and after fertilization - Oogenesis, ovulation, fertilization, cleavage of fertilized egg, and implantation of blastocyst in the uterine wall - Growth of embryo and fetus in the uterus, 4 stages - Structure and function of the placenta, diagram - Fetus in uterus showing placenta, umbilical cord, and amniotic cavity - Full term baby in maternal abdomen, normal cephalic presentation - Beginning of birth, entrance of amniotic sac into the birth canal – Germ development of man and animals. - Starting with the fertilization of the egg and the fusion of the two haploid nuclei, the various types of egg and corresponding types of cleavage are shown. The gastrulation, neurulation and formation of germ layers in Branchiostoma, frog and humans are illustrated. - Fertilization of the Ascaris egg, entering of a sperm I. The beginning of embryonic development - fertilization - Fertilization of Ascaris egg, entrance of spermatozoon in the oocyte - Mature oocyte of Ascaris with male and female pronuclei, each nucleus contains two chromosomes. - II. Cleavage - Metaphase of the first cleavage of Ascaris, equatorial plate in side view shows chromosomes, spindle fibers, centrioles - Telophase of the first cleavage of Ascaris, division of the cell body - Total equal cleavage: 2-, 4-, 8-cell stage, morula - Types of eggs and patterns of cleavage: as far as the 8-cell stage, morula and blastula - Blastula of sea urchin (Echinus), after total equal cleavage - Blastula of frog (Rana), after total unequal cleavage - Insect, blastula after superficial cleavage - III. Gastrulation - Gastrulation of sea urchin, Echinus, diagram and photomicrograph - IV. Neurulation - Organogenesis in frog and chicken - Neurulation in Amphioxus, t.s. diagram - Neurulation in frog, antero-lateral and dorsal view, diagram - Neurula of frog, t.s. - Neurula of frog, mid-dorsal region, t.s., detail - Neurula of chicken, t.s. - Chicken embryo 33 hours of incubation, l.s. - Frog embryo, tail bud stage, l.s. and t.s. - Frog larva, 3 days after hatching, l.s. and t.s. - Frog larva, t.s. of heart region - Chicken embryo, 48-hours, t.s. - Chicken embryo, 72-hours, l.s. - Chicken embryo, 72-hours chick, embryonic disc with circular system injected - Chicken, older embryo, l.s. - V. Organogenesis in humans, Summary - Median l.s. through a human embryo - Development of the human heart, three stages - External changes in the human heart, ventral view - Development of human lungs, t.s. of 6 weeks old embryo - Stages of human pulmonary development - Development of the human eyes, 4 stages - Head of embryo, sagittal section showing eyes - Embryo, median sagittal section of whole body with primordia of organs

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CYTOLOGY, EMBRYOLOGY AND GENETICS