PS263 Chapter Notes - Chapter 3: Vagus Nerve, Semipermeable Membrane, Unipolar Neuron
Document Summary
Fortunately, there is a mechanism that impedes the passage of many toxic substances from the blood into the brain: the blood brain barrier: fill in the blanks, 1. The central nervous system is composed of the brain and the spinal cord: 2. The part of the peripheral nervous system that regulates the body s internal environment is the autonomic nervous system: 3. Nerves that carry signals away from a structure, such as the cns, are efferent nerves: 4. The ans nerves that project from the thoracic and lumbar regions of the spinal cord are part of the sympathetic nervous system: 5. Sympathetic nerves stimulate, organize, and mobilize energy resources in threatening body: axon. The long, narrow process that projects from the cell body: myelin. The fatty insulation around many axons: nodes of ranvier :the gaps between sections of myelin. situations, 6. The vagus nerves are the longest cranial nervous: 7.
