etc. TEST Neurons are whereas neuroglia cells are nerve cells; structural and fu
ID: 3479663 • Letter: E
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etc. TEST Neurons are whereas neuroglia cells are nerve cells; structural and functional units of the nervous system. b. nerves; nerve cells. nerve cells; accessory cells in nerve tissue that support, carry out phagocytosis 1. cells that conduct nerve impulses, fill spaces, and support parts; cells that connect nerve tissue to surrounding organs. Myelin is defined as a. an outer membrane on a neuroglial cell. b. a lipid-protein (lipoprotein) cell membrane on the outside of axons. c) a mass of white lipid material that surrounds the cell body of a neuron. d, a membrane that lies outside to the neurolemma and insulates the euron. whereas an A myelinated nerve fiber is characterized by _ unmyelinated nerve fiber is characterized by. a. being gray and composing the gray matter of the brain and spinal cord; being white and composing the white matter of the brain and spinal cord. b. being white and composing the gray matter of the brain and spinal cord; being gray and composing the white matter of the brain and spinal cord. C. being white and composing the white matter of the brain and spinal cord; being gray and composing the gray matter of the brain and spinal cord. d. none of these. A nerve cell membrane may become polarized as a result of: 1. unequal distribution of ions on each side of the membrane. 2. some ion channels always being open while others can be opened or closed. 3. the relative'ease with which potassium ions diffuse through membranes. 4. totally preventing sodium ions from passing through membrane. a. 1, 2, 3 1, 3 2,4 % | 4 all of these Resting potential is defined as a. movement of ions along an axon. b. movement of action potentials along an axon. , the difference between the inside and outside of a resting nerve cell membrane. . the movement of Na ions outside membrane and Kions inside membrane.Explanation / Answer
- Neurons are nerve cells and neuroglia cells are accessory cells in nerve tissue that support, carry out phagocytosis etc.
- Myelin is defined as a white lipid material that surrounds the cell body of a neuron.
- A myelinated nerve fibre is characterised by being white composing the white matter of the brain and spinal cord whereas unmyelinated nerve fibre characterised by being grey composing the grey matter of the brain and spinal cord.
- A nerve cell membrane may become polarised as a result of option e. all of these.
- Resting membrane potential is defined as the movement of Na ions outside membrane and K ions inside the membrane.
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