Fill in the Blank Question The knotlike swelling in a nerve where neuron cell bodies are found is called a(n) Need help? Review these concept resources. Read About the Concept
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QUESTION 3 Cell bodies of the peripheral nervous system are located in A. the sensory division. B. ganglia. C. the motor division. D. nerves. E. Schwann cells. QUESTION 4 The junction of a neuron with another cell is a/an A. effector. B. synapse. C. receptor D. ganglion. E. None of the above. QUESTION 5 Nissl bodies are A. part of a dendrite. B. part of the Golgi apparatus. C. areas of rough endoplasmic reticulum. D. lipid droplets. E. also called gemmules.
Sri K.
Total Magnification Fill in (complete each statement with the correct term) 1. The soma forms a cone-shaped _?_ as it projects to form an axon. 2. _?_ are small, distal branches of an axon. 3. Either Schwann cells or extensions of _?_ can form myelin sheaths. 4. The gaps between the segments of a myelin sheath are called _?_. 5. A group of myelinated fibers may form a region of nerve tissue called _?_ matter. 6. A junction between two neurons, or between a neuron and effector, is called a(n) _?_. 7. A bundle of parallel neuron fibers encased in fibrous connective tissue is called a(n) _?_ (in the PNS). 8. An action potential traveling down a myelinated axon travels _?_ (faster/slower) than in an unmyelinated axon. 9. Unmyelinated nerve tissue is called _?_ matter. 10. _?_ neurons have exactly two projections from the cell body. 11. _?_ neurons have multiple dendrites and a single axon extending from the cell body. 12. In _?_ neurons, a single process from the cell body diverges to form two long branches-one acting as a dendrite and the other as an axon. 13. Schwann cells form myelin sheaths in the _?_ nervous system. 14. Oligodendrocytes form myelin sheaths in the _?_ nervous system. 15. Neuroglial cells called _?_ cells line the fluid spaces of the brain. 16. Small glial cells that phagocytize harmful matter are called _?_. 17. _?_ are ciliated neuroglia that assist the circulation of CSF. 18. Of the two major types of cells in nerve tissue, the _?_ is the most numerous.
Madhur L.
Provide receptive surface on the neuron for input from the environment or from other cells: Dendrite Myelin Synaptic end bulb Nissl bodies Neurofilaments Endoneurium Axon Microtubules Endomysium Schwann cell. Conducts impulses away from the cell body to other neurons, muscle, or glands. Provide structural support to the cell and axon. An orderly arrangement of the cell's rough endoplasmic reticulum and free ribosomes. Swollen end of an axon terminal filled with vesicles with neurotransmitter. Cell of the peripheral nervous system that produces myelin to wrap axons. A protein and fat substance that is produced by the Schwann cell and wraps the axon. A layer of dense irregular connective tissue around individual axons. A layer of dense irregular connective tissue around individual myofibers. Assist with vesicular transport within the neuron.
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