NSCI 2121- Midterm Exam Guide - Comprehensive Notes for the exam ( 22 pages long!)
6 Oct 2017
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The peripheral nervous system extracts information from around and within the body. The peripheral nervous system, or pns, are all the neurons that reside or extend axons outside the cns. The central nervous system, or cns, is the brain and spinal cord. 2. 1 the nervous system, develops from the embryonic neuroectoderm. Embryos of animals are organized into three primary tissues called the germ layers. Ectodermal derivative include the epidermis and the nervous system, which is. Inner layer: endoderm derived from the neuroectoderm (neurogenic region of the ectoderm) Epithelium: a tissue that lines the external and internal surfaces, including internal cavities and organs and other free open surfaces of the body. Formation of the germ layers follows the repeated division of a fertilized egg to generate a collection of cells that are then rearranged to generate germ layers. Gastrulation involves the movement of cells from the outer surface of the embryo to its inside.
