what are the major parts of nerve cell?
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Nervous system cells are called neurons. They have three distinct parts, including a cell body, axon, and dendrites. These parts help them to send and receive chemical and electrical signals.
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The Nervous System is divided into two parts. What are they? 1) The CNS (Central Nervous System) and 2) The PNS (Peripheral Nervous System.
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Although the nervous system is very complex, there are only two main types of cells in nerve tissue. The actual nerve cell is the neuron. It is the "conducting" cell that transmits impulses and the structural unit of the nervous system. ... They are a special type of "connective tissue" for the nervous system.
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The Human Nervous System: The major organs and nerves of the human nervous system. The CNS is comprised of the brain, cerebellum and spinal cord. Remaining neurons, and associated cells, distributed throughout the body form the PNS.
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Types of Neurons (Nerve Cells) The human body is made up of trillions of cells. Cells of the nervous system, called nerve cells or neurons, are specialized to carry "messages" through an electrochemical process. The human brain has approximately 86 billion neurons.
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Parts of a neuron Neurons vary in size, shape, and structure depending on their role and location. However, nearly all neurons have three essential parts: a cell body, an axon, and dendrites.
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Cells of the Nervous System. There are two broad classes of cells in the nervous system: neurons, which process information, and glia, which provide the neurons with mechanical and metabolic support. Three general categories of neurons are commonly recognized (Peters, Palay, & Webster, 1976).
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["Cell body. Also known as a soma, the cell body is the neuron's core. ... ", 'Axon. An axon is a long, tail-like structure which joins the cell body at a specialized junction called the axon hillock. ... ', 'Dendrites.']
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The nervous system can be divided into two major regions: the central and peripheral nervous systems. The central nervous system (CNS) is the brain and spinal cord, and the peripheral nervous system (PNS) is everything else (Figure 8.2).
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Neurons (also known as neurones, nerve cells and nerve fibers) are electrically excitable cells in the nervous system that function to process and transmit information. In vertebrate animals, neurons are the core components of the brain, spinal cord and peripheral nerves.
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Although the nervous system is very complex, nervous tissue consists of just two basic types of nerve cells: neurons and glial cells. Neurons are the structural and functional units of the nervous system. They transmit electrical signals, called nerve impulses.
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A nerve cell (neuron) is, of course, just one cell. A nerve is a bundle of axons (nerve fibers) from many neurons, wrapped up in multiple layers of connective tissue and containing blood vessels as well. Nerves do not contain the cell bodies or dendrites of neurons—just their axons.
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We can anatomically divide the nervous system into two major regions: the central nervous system (CNS) is the brain and spinal cord, the peripheral nervous system (PNS) is the nerves (Figure 12.1.
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Neurons, or nerve cell, are the main structural and functional units of the nervous system. Every neuron consists of a body (soma) and a number of processes (neurites). ... Dendrites are short and act to receive impulses from other neurons, conducting the electrical signal towards the nerve cell body.
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The takeaway Nervous system cells are called neurons. They have three distinct parts, including a cell body, axon, and dendrites. These parts help them to send and receive chemical and electrical signals.
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['Neurons: ... ', 'Neurons are complex structures composed of 3 three basic parts: the cell body, the dendrites, and the axon. ... ', 'Cell body (or soma) ... ', 'Neurons have two types of specialized extensions of the cell membrane that allow them to communicate: ... ', 'Dendrites: ... ', 'Axon:']
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As you can see in Figure 4.1, “Components of the Neuron,” neurons are made up of three major parts: a cell body, or soma, which contains the nucleus of the cell and keeps the cell alive; a branching treelike fibre known as the dendrite, which collects information from other cells and sends the information to the soma; ...