the nerve cells in the human nervous sytem seldom undergo mitosis.?
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well if mitosis is the thing where they divide, then i dont think the nerve cells ever do.
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the motor neurons in the peripheral nervous system.
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Your question is hard to understand, but here is some basic information about the nervous system in humans/animals.  \n\n\nThe nervous system of an animal coordinates the activity of the muscles, monitors the organs, constructs and also stops input from the senses, and initiates actions. Prominent participants in a nervous system include neurons and nerves, which play roles in such coordination.\n\nThe nervous system of vertebrate animals are often divided into a central nervous system (CNS) and the peripheral nervous system (PNS). The CNS consists of the brain and spinal cord. The PNS consists of all other nerves and neurons that do not lie within the CNS. The large majority of what are commonly called nerves (which are actually axonal processes of nerve cells) are considered to be PNS. The peripheral nervous system is divided into the somatic nervous system and the autonomic nervous system. For example, the human brain is part of the 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. The other type of cell is neuroglia, or glial, cell. The word "neuroglia" means "nerve glue." These cells are nonconductive and provide a support system for the neurons. They are a special type of "connective tissue" for the nervous system.\nNeurons\n\nNeurons, or nerve cells, carry out the functions of the nervous system by conducting nerve impulses. They are highly specialized and amitotic. This means that if a neuron is destroyed, it cannot be replaced because neurons do not go through mitosis.
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During mitosis one of our cells (such as a skin cell for instance) divides to form two cells each of which is identical to the single parent cell, each new cell has the same ploidy, if the originating cell is diploid then the two progeny cells are diploid and identical to the parent cell. Mitosis is the kind of cell division that occurs when body cells replace each other during normal aging and wear and tear bodily growth, in cells such as those of the skin, digestive tract etc. Since this kind of cell division is non sexual it is also often described as vegetative division, and since it produces exact copies of the parent cell it is sometimes called clonal division. The function, then, of mitosis, is to ensure that each of the two new cells generated from one receives one of the sister chromatids from each chromosome in the original cell.
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The two answers that you see most often are nerve cell and ovum.\nBoth are correct.\n1. the nerve cells that make up sensory nerves have their cell bodies in the dorsal root ganglion located in the back and the have extensions (dendrites) that reach to the area sensed (all the way to the toes. (many millimeters long but very, very thin).\n2. The cell body of the ovum is the round and had the largest volume of any cell.
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Nerve injuries may be graded as follows from least severe to most severe:\n\nNeuropraxia: damage is minimal. Axons remain intact but conduction ceases due to segmental demyelination. This is transient with spontaneous recovery in days to weeks\n\nAxonometsis: Literally axonal seperation. Axons are severely damaged usually by traction or compression and the distal portions degenerate. The investing endoneural sheath remains intact however so recovery is likely although delayed\n\nNeurotmesis: Nerve completely divided and spontaneous recovery does not occur.
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Central Nervous System (CNS) includes the brain the spinal cord. Then the Peripheral Nervous System (PNS). The peripheral nervous system is divided into the somatic nervous system and the autonomic nervous system. \nThe somatic nervous system is responsible for coordinating the body's movements, and also for receiving external stimuli. It is the system that regulates activities that are under conscious control.\nThe autonomic nervous system is then split into the sympathetic division, parasympathetic division, and enteric division.\n\nHope i have helped you.....\nby the way.. your heart is part of your nervous system.... you can read it in the site below....
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remember the phases in meiosis (in order) :Prophase, Metaphase, anaphase, telephase (pmat)\nMitosis\nI  INTRODUCTION \n\nMitosis, process in which a cell’s nucleus replicates and divides in preparation for division of the cell. Mitosis results in two cells that are genetically identical, a necessary condition for the normal functioning of virtually all cells. Mitosis is vital for growth; for repair and replacement of damaged or worn out cells; and for asexual reproduction, or reproduction without eggs and sperm.\n\nAll multicellular animals, plants, fungi, and protists, which begin life as single cells, carry out mitosis to develop into complex organisms containing billions of cells. Mitosis continues in full-grown organisms as a means of maintaining the organism—replacing dying skin cells, for example, or repairing damaged muscle cells. In the cells of the adult human body, mitosis occurs about 25 million times per second. Multicellular organisms such as sea stars, sea anemones, fungi, and certain plants rely on mitosis for asexual reproduction at particular stages in their life cycles, and mitosis is the sole mode of reproduction for many single-celled organisms.\n\nII  INTERPHASE \n\nThe life cycle of eukaryotic cells, or cells containing a nucleus, is a continuous process typically divided into three phases for ease of understanding: interphase, mitosis, and cytokinesis. Interphase includes three stages, referred to as G1, S and G2. In G1, a newly formed cell synthesizes materials needed for cell growth. In the S stage, deoxyribonucleic acid (DNA), the genetic material of the cell, is replicated. At this stage, DNA consists of long, thin strands called chromatin. As each strand is replicated, it is linked to its duplicate by a structure known as a centromere. When the S stage is complete, the cell enters a brief stage known as G2, when specialized enzymes correct any errors in the newly synthesized DNA, and proteins involved with the next phase, mitosis, are synthesized. \n\nIII  MITOSIS \n\nMitosis occurs in four steps. In prophase the replicated, linked DNA strands slowly wrap around proteins that in turn coil and condense into two short, thick, rodlike structures called chromatids, attached by the centromere. Two structures called centrioles, both located on one side of the nucleus, separate and move toward opposite poles of the cell. As the centrioles move apart, they begin to radiate thin, hollow, proteins called microtubules. The microtubules arrange themselves in the shape of a football, or spindle, that spans the cell, with the widest part at the center of the cell and the narrower ends at opposite poles. As the spindle forms, the nuclear membrane breaks down into tiny sacs or vesicles that are dispersed in the cytoplasm. Final disintegration of the membrane marks the beginning of metaphase. \n\nIn metaphase, the spindle fibers attach to the chromatids near the centromeres, and tug and push the chromatids so that they line up in the equatorial plane of the cell halfway between the poles. Like two individuals standing back to back at the equator, one chromatid faces one pole of the cell, and its linked partner faces the opposite pole. This precise orientation is necessary in order for the next step, anaphase, to occur. Anaphase begins when the centromeres split, separating the identical chromatids into single chromosomes, which then move along the spindle fibers to opposite poles of the cell. \n\nAs these two identical groups of single chromosomes gather at opposite poles of the cell, telophase begins. A new nuclear membrane forms around each new group of chromosomes. The spindle fibers break down and the newly formed chromosomes begin to unwind. If viewed under a light microscope, the chromosomes appear to fade away. They exist, however, in the form of chromatin, the extended, thin strands of DNA too fine to be seen except with electron microscopes. Mitosis accomplishes replication and division of the nucleus,
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Your brain is mostly damaged in the part where a certain part of the spinal cord is damaged. Neurons do not regenerate. They get killed and don't come back. Nerve cells don't normally regenerate themselves.
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Human cells have 46 chromosomes. To ensure that each daughter cell receives one and only one of each chromosome, eukaryotic cells undergo a complex, multistep process called mitosis. Before mitosis can begin, eukaryotes must first replicate their DNA. This process is similar to but takes much longer than DNA replication in prokaryotes. Then, during mitosis, the replicated chromosomes line up along the center line of the cell. Tiny fibers, called spindle fibers, attach to the individual chromosomes and pull them apart, toward opposite poles of the cell, where they remain until the cell divides.\n\nLong story short, the new skin cell will still have 46 chromosomes.
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Mitosis is nuclear division plus cytokinesis, and produces two identical daughter cells during prophase, prometaphase, metaphase, anaphase, and telophase. Interphase is often included in discussions of mitosis, but interphase is technically not part of mitosis, but rather encompasses stages G1, S, and G2 of the cell cycle.  \nInterphase & mitosis Interphase \n  \nThe cell is engaged in metabolic activity and performing its prepare for mitosis (the next four phases that lead up to and include nuclear division). Chromosomes are not clearly discerned in the nucleus, although a dark spot called the nucleolus may be visible. The cell may contain a pair of centrioles (or microtubule organizing centers in plants) both of which are organizational sites for microtubules. \n \nProphase \n  \nChromatin in the nucleus begins to condense and becomes visible in the light microscope as chromosomes. The nucleolus disappears. Centrioles begin moving to opposite ends of the cell and fibers extend from the centromeres. Some fibers cross the cell to form the mitotic spindle. \n \nPrometaphase\n  \nThe nuclear membrane dissolves, marking the beginning of prometaphase. Proteins attach to the centromeres creating the kinetochores. Microtubules attach at the kinetochores and the chromosomes begin moving. \n \nMetaphase\n  \nSpindle fibers align the chromosomes along the middle of the cell nucleus. This line is referred to as the metaphase plate. This organization helps to ensure that in the next phase, when the chromosomes are separated, each new nucleus will receive one copy of each chromosome.\n \nAnaphase\n  \nThe paired chromosomes separate at the kinetochores and move to opposite sides of the cell. Motion results from a combination of kinetochore movement along the spindle microtubules and through the physical interaction of polar microtubules. \n \nTelophase \n  \nChromatids arrive at opposite poles of cell, and new membranes form around the daughter nuclei. The chromosomes disperse and are no longer visible under the light microscope. The spindle fibers disperse, and cytokinesis or the partitioning of the cell may also begin during this stage. \n \nCytokinesis\n \nIn animal cells, cytokinesis results when a fiber ring composed of a protein called actin around the center of the cell contracts pinching the cell into two daughter cells, each with one nucleus. In plant cells, the rigid wall requires that a cell plate be synthesized between the two daughter cells.
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the cell dividing force lol. theres no such force. it's a spontaneous occurence
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Schwann Cells (not 100% sure sorry)
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Ganglion is collection of cell bodies in peripheral, included sensory, prevertabral, paravertabral ganglions.\nNuclei is usually confine to the collection of cell bodies in CNS, e.g. nuclei of cranial nerve.\nTract is a term for nerve cell process.\nNerves is a term used in both CNS and PNS, just simply refer to a collection of functional related nerve cells and its process.
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A brian is defined as the principal ganglion of an animal's nervous system.  A ganglion is a collection of nerve cells that process information.  It receives in formation from nerve fibers that extend throughout the body of an animal and also may be affected by a variety of hormones.  The level of complexity of a central ganglion roughly parallels the anatomical complexity of the organism as a whole. \nMulticellular organisms need to coordinate the activities of their individual cells.  Most animals use a system of specialized cells, called neurons, to help coordinate the activities of different tissues. The exceptions include sea sponges, which are a rather like a loose collection of cells.  Other primitive animals such as jelly fish, do have neurons organized into networks. \n\nWhile all of these organisms can sense their environment in some way and respond to it, they do not have brains.  Only animals with distinct body cavities possess brains.  This includes life forms as diverse as earth worms, clams, fish, insects, birds, and of course, human beings.  As a general rule, animals with more tissue types have more intricate brains. \n\nBoth invertebrate and vertebrate animals can have complex brains.  Of the invertebrates, squid an octopuses have the most developed brains, in part to process information coming from their highly sophisticated eyes.  A medium sized octopus will have a brain containing over 100 million neurons, and can show learning behavior.  Still, this is a far cry form mammalian brains that contain on  the order of 10 billion neurons. \n\nOur human brains are remarkably facile in learning, dependable in recollecting and can be quite creative in thinking and expressing a variety of thoughts and emotions.
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sex cells. they only have half the nomal number of chromosomes.