PDF-Structure of Myelin Sheaths in the Central Nervous System of Xenopus l

Studies on the structure of peripheral and central myelin using xray diffraction 1 2 polarised light 3 and electron microscopy 2 46 show that in both cases the myelin has the same basic st. Green sheaths are slit to work with Oring guns Blue sheaths are unslit to work with spiral guns Sheaths 175 4445cm long Sanitary Chemise prevents transmission of contaminants Chemise available in 18 457cm 21 533cm long Chemise comes in perforated Central Nervous System. Peripheral Nervous System. The Nervous System. Central Nervous System. The Nervous System. Central Nervous System. Central Core. Limbic System. Cerebrum. The Nervous System. Central Nervous System. www.biochemlab.it. - NIH, Bethesda. …. Myelin. . organizes. the . very. . structure . of network connectivity, facilitates. modes of nervous system function . beyond the . neuron doctrine, and regulates the . Rachel . Siefring. Mentor: Dr. Carmen Sato-. Bigbee. The human population. People with disabilities. People with autism. Rett. Syndrome. Rett. Syndrome. Cause of . Rett. Syndrome. Caused by a mutation. Alireza . Akhondi-Asl. Boston . Children’s Hospital, and Harvard Medical School . 300 Longwood Ave. Boston MA 02115 USA. Outline. Quantitative myelin assessment . Myelin Imaging. T2-distribution models. Functions of the Nervous System. Sensory input. Information gathered by sensory receptors about internal and external changes . Integration. Interpretation of sensory input. Motor output. Activation of effector organs (muscles and glands) produces a response. The . function of the nervous system is:. To sense, interpret, and respond to internal and external environmental changes to maintain a steady state in the . body (homeostasis). The nervous system is divided into two major structures: . 1. nervous system overview. Nervous system. Monitors and processes sensory information from the environment and from within the body. Principal cell populations. Neuron . - . t. ransmits . impulses. Neuroglia . Brain. Spinal Cord. Nerves. Vocabulary to Know . Homeostasis. The regulation of steady, life-maintaining conditions inside an organism, despite changes in its environment . Nerve Cells . Neurons. Basic functioning units of the nervous system . 1. Two main divisions. a. . Central Nervous System . (CNS) – consists of brain and spinal cord. b. . Peripheral Nervous System . (PNS) – includes nerves extending from . brain and . spinal . cord . Brain. Spinal Cord. (also includes 4 chambers in brain called ventricles). Brain. 1) Cerebral Hemispheres. 2) Diencephalon. 3. ) Brain Stem. 4) Cerebellum. 1) Cerebral Hemispheres. Covered by ridges = . synthetase in astrocytes (see Figure 10.13), glutamine isformed from glutamate. Glutamine is then uptaken byneurons and transformed back in glutamate.2.2OLIGODENDROCYTES FORM THE MYELIN SHEATHS OF AXO Persistant viral infections of the central nervous system. Genomes either integrate or persist as episoms. Mechanism of persistance is not yet understood. Avoid detection and elimination by the host. 1. . Afferent. 1. . a brain area critical to learning to recognize threatening situations. 2. . amygdala. 2. . toward the nose. 3. . anterior . 3. . One of three meninges that surround and protect the spinal cord and the brain.