组织学与胚胎学英语课件.ppt

神经系统掌握内容：大脑皮质的分层；小脑皮质的分层。熟悉内容：脊髓的组织学结构；血脑屏障的结构。了解内容：周围神经节的结构。 Introduction The nervous system is divided into the central nervous system (CNS) and the peripheral nervous system . The central nervous system consists of the cerebrum, cerebellum, and spinal cord. In the cerebral cortex, the gray matter has six layers of cells with different forms and sizes. The cerebellar cortex has three layers: an outer molecular layer, a central layer of large Purkinje cells and an inner granule layer. The main components of the peripheral nervous system are the nerves, ganglia. peripheral nervous system peripheral nerve ganglion New Words: 1. Central nervous system 2. Peripheral nervous system 3. White matter 4. Gray matter 5. Cerebrospinal ganglia 6. Autonomic ganglia 7. Meninges 8. Cerebrospinal fluid 9. Molecular layer 10. External granular layer Sensory nerve ending Component : sympathetic ganglion and parasympathetic ganglion 3.Autonomic ganglion sympathetic ganglion ： principal ganglion cell small intensity fluorescent cell（SIF） parasympathetic ganglion ： intraneural ganglion nerve plexus sympathetic ganglion dura mater arachnoid pia mater Meninges Meninges are membranes formed of connective tissue that surround the brain and spinal cord. Function:There is a barrier that prevents the passage of certain substances from the blood to nerve tissue. The blood-brain barrier results from the reduced permeability that is a property of blood capillaries of nerve tissue. Blood-brain barrier(BBB） Continuous endothelial cells of capillaries Basal lamina Expansions of neuroglial cell component astrocyte 11. External pyramidal layer 12. Internal granular layer 13. Internal pyramidal layer 14. Multiform layer 15. Spinal cord 16. Purkinje cell layer 17. Cerebral cortex 18. Cerebellar cortex 19. sympathetic ganglion 20. parasympathetic ganglion 21. Blood-Brain barrier * * Nervous System Dongmei Li Dept