'Allantois ' presentation slideshows

Lab Ex. 62 Fertilization & Early Development

Lab Ex. 62 Fertilization & Early Development. zygote. morula. blastocyst. trophoblast. inner cell mass. embryo / gastrula. fetus. placenta. maternal portion. fetal portion. Chorion (maroon). chorionic villi. Amnion (white). amniotic cavity. yolk sac.

348 views • 25 slides

Folding of the Embryo

427 views • 17 slides

Reptiles and Birds

Reptiles and Birds. Ms. Moore. What is a Reptile?. Body Plan: land vertebrates Well-developed skull Backbone and tail Two limb girdles with four limbs A reptile is a vertebrate that has a dry, scaly skin , lungs , and terrestrial eggs with several membranes.

245 views • 12 slides

Human Development

Human Development. Fertilization. Must occur within 24hrs postovulation Requires capacitated sperm (6-8hrs) Secondary oocyte completes Meiosis II once sperm enters oocyte Zygote formed with fusion of male and female pronuclei. Cleavage. Rapid mitotic cell division of zygote

115 views • 8 slides