embryology Archive

2nd, 3rd and 4th weeks of development: Week 2 : Bilaminar germ disc Week 3 : Trilaminar germ disc Week 4 : Appearance of 4 limbs Major Neural Crest Derivatives: “GAMES” Glial cells of peripheral ganglia Arachnoid and Pia Sheath Melanocytes Enteric ganglia Schwann ...Read More

Development Of Fetal Structures From the Three Germ Layers: The three germ consiting of Ectoderm, mesoderm and endoderm give rise to all the organs and structures in the body. The list of structures developed from 3 primitive germ layers in given below. Skin Ectoderm- ...Read More

Cloning Cloning simply means making exact multiple copies of genes, a cell, or an organism. The cloning of human beings may some day be possible. Although subject to environmental influences, the clone would be expected to closely resemble its “parent.” Therapeutic cloning or Somatic ...Read More