Major Divisions Of The Nervous System Essay

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CHAPTER 12 - THE NERVOUS SYSTEM AND NERVOUS TISSUE Name the major divisions of the nervous system, both anatomical and functional The nervous system has two Anatomical Divisions: 1. Central Nervous system(CNS) CNS includes Brain and Spinal Cord. This system is integrative and controls system. While the brain has three main parts, the cerebrum, the cerebellum, and the brain stem. 2. Peripheral nervous system (PNS) PNS include Cranial Nerves and spinal Nerves. It is communication line between the CNS and the rest of the body. Nervous system can be classified into Sensory division and Motor Division based on functionally 3. Sensory Division It contains Somatic and Visceral sensory nerve fibers which conduct impulses from receptor to the CNS. 4. Motor…show more content…
This is called integration. Stimuli are compared with, other stimuli, memories of previous stimuli, or the state of a person at a particular time. This leads to the specific response that will be generated. Describe the components of the membrane that establish the resting membrane potential Most cells in the body make use of charged particles, ions, to build up a charge across the cell membrane. Cells make use of the cell membrane to regulate ion movement between the extracellular fluid and Cell Body. The electrical state of the cell membrane can have several variations. A potential is a distribution of charge across the cell membrane, measured in millivolts (mV). The standard is to compare the inside of the cell relative to the outside, so the membrane potential is a value representing the charge on the intracellular side of the membrane based on the outside being zero, relatively speaking. It has two components an electrical and a chemical. The electrical is caused by the charge of ions. And the chemical gradient is caused by the concentration of those ions. Substances that have electrical charges Na+, K+ ions, and also other ions such as

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