Pattern generation in the nervous system
- 1. SEMINAR PRESENTATION PATTERN GENERATION IN THE NERVOUS SYSTEM BY: S. DASH
- 2. • FORMATION OF CENTRAL NERVOUS SYSTEM 1. Neural induction and establishment of neural cells. 2. Neurulation : The formation of neural tube 3. From Neural tube to central nervous system
- 3. NEURAL INDUCTION AND ESTABLISHMENT OF NEURAL CELLS
- 4. NEURULATION : THE FORMATION OF NEURAL TUBE
- 5. Disorders related to improper Neurulation ANENCEPHALY SPINA BIFIDA
- 6. FROM NEURAL TUBE TO CENTRAL NERVOUS SYSTEM • DIFFRENTIATION OF NEURAL TUBE ANATOMICAL TISSUE CELLULAR Neural tube Cells of walls of neural tube Neuroepithelial bulges rearranges to form various cells functional regions of brain and differentiate spinal cord Constricts to form Produce neurons chamber of brain and and spinal cord glial cells
- 7. • REGIONAL DIFFERENTIATION OF CENTRAL NERVOUS SYSTEM A. Brain B. Spinal cord C. Development of gray and white matter
- 8. BRAIN 4-WEEK HUMAN EMBRYO Posterior part of Anterior portion of neural tube forms and neural tube it gets bulged. is formed Prosencephalon Mesencephalon Rhombencephalon Anterior Diencephalon Metencephalon Mylencephalon Telencephalon Cerebral Thalamus Hypothalamus Optic vesicles Cerebellum Medulla Oblongata Hemispheres Retina Does not divide
- 10. ARRANGEMENT OF GRAY MATTER AND WHITE MATTER IN BRAIN AND SPINAL CORD IN MAN.
- 11. • DEVELOPMENT OF PERIPHERAL NERVOUS SYSTEM STRUCTURE OF SPINAL NERVE
- 12. GLOSSARY: • Mesenchymal cells: are multipotent stromal cells that can differentiate into a variety of cell types, including osteoblasts (bone cells), chondrocytes (cartilage cells), myocytes (muscle cells) and adipocytes (fat cells which give rise to marrow adipose tissue) • Tail organizer:cluster of cells in the embryo that induces nearby cells to contribute to the formation of the tail. • Cavitation:the formation of an empty space within a solid object or body.
- 13. REFERENCES: • An introduction to Developmental Biology(2016) by S . Chattopadhyay. Page number:352-363. Published by : Books and Allied Pvt. Ltd. • Developmental Biology by Scott . F. Gilbert.(Edition-10) Page number:333-348 Published by : Sinauer Associates Inc