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Non-conducting support cells of the nervous system or 'Neuroglial' cells represent a range of cells which function to maintain the nervous system.
Some common ones are:
Astrocytes envolved in providing nutrients and creating the blood-brain barrier
Microglia are the immune cells of the nervous system
Oligodendricytes and Schwann Cells produce the myelin sheaths which insulate the axons of neurons
Ependymal cells secrete cerebrospinal fluid
That's just a few
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Which of the followind is composed of nervous tissue?
The brain and spinal cord are composed of nervous tissue, which is made up of neurons and supporting cells called neuroglia. Nervous tissue is responsible for sending and receiving signals within the body for communication and coordination of various functions.
What nervous system is a division of the peripheral nervous system that deals with involuntary movement of smooth and cardiac muscles?
That system is called as autonomic nervous system. It is composed of sympathetic and parasympathetic nervous systems.
White matter is composed of axons that are sheathed in what?
White matter is composed of axons that are sheathed in fatty myelin, which helps to insulate and protect the axons. The myelin sheath is produced by specialized cells called oligodendrocytes in the central nervous system and Schwann cells in the peripheral nervous system.
What are specialized cells that do all the support activities for the nervous system?
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.
What is myelinated nervous tissue?
Myelinated nervous tissue is composed of nerve cells with a fatty substance called myelin sheath covering their axons. This sheath acts as insulation, speeding up the transmission of nerve impulses along the axon. Myelinated tissue is found in the brain, spinal cord, and peripheral nervous system.
