pregnancy and embryonic development

Embryonic Development - All the events which change a zygote into a fully developed organism is called embryonic development. The entire process of development is called embryogenesis. Von Bear is called the "Father of Modern Embryology". ..

All the events which change a zygote into a fully developed organism is called embryonic development. The entire process of development is called embryogenesis. Von Bear is called the "Father of Modern Embryology". Embryonic Development in..

The 3 germ layers give rise to definite organs and organ systems. The different organs formed from the different layers are Germ Layer - Structures formed Ectoderm - Epidermis, lens retina, internal ear, CNS, middle and posterior pituitary and pineal gland Mesoderm - Muscles, connective tissue, der..

It acts as an extra embryonic lung and helps in exchange of gases. It also plays an important part in embryonic respiration, excretion and nutrition by developing into a placen..

It is well developed in reptiles, birds and prototherians. It is mainly digestive in function so it acts as an extra embryonic gut. In human beings it is vestigi..

Cell division forms a mode of reproduction in unicellular organisms. In multicellular organisms it is responsible for embryonic development and growth of the adult organism. It is also involved in repair and regeneration. Both asexual and sexual reproduction requires cell divisi..

Differentiation is the process by which the unspecialised embryonic cells change in structure and function during development and growth of an organism to form specialised cell types, tissues, and organs, distinct from one another. Differentiation makes cells of the same g..

Cell division forms a mode of reproduction in unicellular organisms. In multicellular organisms it is responsible for embryonic development and growth of the adult organism. It is also involved in repair and regeneration. Both asexual and sexual reproduction requires cell ..

As the cells of the morula continue to divide, a cavity appears inside the morula. It forms the blastocoel. It separates a surface layer of blastomeres from an inner cell mass. The blastomeres on the surface of the embryo become flattened and form the trophoectoderm or trophoblast. This layer on fu..

In Eucoelomate bilaterally symmetrical animals, during the embryonic development, a slit called blastopore appears in the embryonic stage called blastula. The blastopore marks the beginning of antero-posterior elongation of the embryo. Based on the fate of blastopore, ..