The perikaryon (cell body) is the neuron central part, to other neurons or directly to muscles or glands. These sheaths are composed of cell membranes from Schwann cells.
No, not at all. The myelin sheaths are actually made by other living cells in the nervous system known as glia. Two types of glia myelinate the nervous system: oligodendrocytes and Schwann cells. The oligodendrocytes for myelin in the central nervous system (brain and spinal cord) and the Schwann cells form myelin in the peripheral nervous system (everything outside the brain and spinal cord).
The brain and spinal cord are the two components of the Central Nervous System, and the CNS is composed of mostly neurons, with oligodendrocytes to provide myelin sheaths, microglia as immune cells, and astrocytes for general support. Other cell types (ependymal cells, radial glia) also exist in isolated locations.
The nervous system is composed of several basic cell types, including nerve cells called neurons, interstitial cells called neurolemma (cells of Schwann), satellite cells, oligodendroglia, and astroglia; and several connective-tissue cell types, including fibroblasts and microglia, blood vessels, and extracellular fluids.
neurons or nerve cells
Central Nervous System (brain and spinal cord)Autonomic Nervous System (nerves and ganglia)Peripheral Nervous System (outside the brain and spinal cord)
Neurons and Synapse
There are many types of cells associated with the nervous system. Examples are:Neurons (the functional unit of nervous system). There are many types of neurons as well.OligodendrocyteSchwann cells
Neuroglia are the supporting cells of the NS. There are four types in the central nervous system (CNS) and two types in the peripheral nervous system (PNS). They all have functions that contribute to the overall health of neuron cells.
Nervous tissue consists mainly of nerve cells and glial cells. Glial cells are the most abundant cell types in the central nervous system.
lymph nodes are made out of lymphoid tissuethat is able to receive the lymph and return cleaned lymph back into the circulation. Generally the cell types found in the lymph nodes are antigen-presenting cells (specifically dendritic cells), T cells (both helper CD4 T cells and killer CD8 T cells) and B cells (which produce antibodies).
There two types of cells found in nervous tissue. These two types of cells include: neurons and neuroglial cells.
Epithelial, Nervous, and Muscular tissue.