A.1.It serves as the functional unit of the nervous system.2.it collects information from the sense organ such as the eyes and the nose.3.it serves as the primary organ of the central nervous system.4.it controls or regulates body's internal brain environment,including the body temperature,pulse and respiration rate,and blood pressure.5.it is one of the systems that is directly involved in maintaining normal functions of cells.B.a.sympatheticnerveb.neurons c.peripheral nervous system d.nervous systeme.automatic nervous system f.spinal cord
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Answer: 1.The NEURONS is the functional unit of the nervous system. Humans have about 100 billion neurons in their brain alone! While variable in size and shape, all neurons have three parts. Dendrites receive information from another cell and transmit the message to the cell body.
3. The NERVOUS SYSTEM transmits signals between the brain and the rest of the body, including internal organs. In this way, the nervous system's activity controls the ability to move, breathe, see, think, and more. The basic unit of the nervous system is a nerve cell, or neuron.
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