Biology 2581B Study Guide - Quiz Guide: Lateral Plate Mesoderm, Paraxial Mesoderm, Neural Tube
15 May 2020
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Describe how an organism pattern ectoderm into either neuroectoderm or epidermis. Explain how neuroectoderm is turned from sheet cells to neural tube. Describe how a uniform anterior neural tube changes into bulges which form the divisions of the brain. Describe how the neural tube acquires ap patterning. Determine how cell division and layering (stratification) occurs in neural development. Pattern formation is the developmental process by which cells acquire different identities, depending on their relative spatial positions within the embryo. Pattern formation ensures that tissues and organs develop in the correct place and orientation within the body. Neurulation is the process whereby the neural plate forms the neural tube. The node is important as it induces a new axis and neurulation in prospective epidermis. The default pathway for ectoderm is to form neuroectoderm, however lateral plate mesoderm (lpm) produces a diffusible factor that inhibits neural programme and induces epidermis formation.
