BIO 111 Chapter Notes - Chapter 38: Lateral Plate Mesoderm, Sonic Hedgehog, Intermediate Mesoderm
Document Summary
38. 4 gastrulation sets the stage for organogenesis and neurulation in chordates. Organogenesis the phase in development in which all of the organs and organ systems form. Neurulation the process by which the nerve cord and brain form. Different germ layers give rise to different types of organs: ectoderm. Forms the epidermis of skin, hair, claws, the brain, the nerve cord, and pigment cells: endoderm. Produces the lining of the digestive tract, also the lungs, liver, pancreas, gall bladder: mesoderm. Notochord, heart, blood vessels, urogenital system, muscles, bones, and. Notochord a supporting structure that is induces the ectoderm into forming the nerve the dermis (the inner layer of skin) cord. Induction the ability of one tissue to direct or lead another along a specific pathway of development: the notochord eventually results in the development of certain areas of the brain and then becomes the spinal cord.
