PHYSIOLOGY
MUSCLE RECEPTORS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Nerve cells are sometimes packed closely together and sometimes widely spaced.
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Nerve cells can be damaged by a serious injury or by disease.
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Nerve cells grow and reproduce like other cells of the body.
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Nerve cells can carry signals and connect all parts of the body to the brain.
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Detailed explanation-1: -Which properties of nerve cells are most important for their ability to carry out their task in helping animals deal with sensory input? Nerve cells are sometimes packed closely together and sometimes widely spaced. Nerve cells can carry signals and connect all parts of the body to the brain.
Detailed explanation-2: -Neurons are characterized by four main functional properties; a) electrical excitability (mostly across the plasmalemma), b) secretion (mostly vesicular and peptide extruding channel dependent), c) molecular synthesis (mostly proteins), and d) growth and plasticity.
Detailed explanation-3: -Neurons, also known as nerve cells, send and receive signals from your brain. While neurons have a lot in common with other types of cells, they’re structurally and functionally unique. Specialized projections called axons allow neurons to transmit electrical and chemical signals to other cells.
Detailed explanation-4: -Two mechanisms have evolved to transmit nerve signals. First, within cells, electrical signals are conveyed along the cell membrane. Second, for communication between cells, the electrical signals generally are converted into chemical signals conveyed by small messenger molecules called neurotransmitters.