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Transcript
Nerve Tissue Name Match the anatomical terms in Column B with the appropriate descriptions in Column A. Place the correct letters in the answer blanks. Column A Column B 1. ____ Conducts the impulse toward the nerve cell body. A. axon 2. ____ Location of the nucleus. B. axon terminal 3. ____ Conducts impulse away from the nerve cell body. C. dendrite 4. ____ A slender process often called a nerve fiber. D. myelin 5. ____ Material found inside of Schwann cells; insulates the axon. E. cell body 6. ____ Receptors for nerve signals. 7. ____ Releases neurotransmitters to neighboring neurons. 8. ____ Short, tapering, branched extensions; connected to cell body. Circle the term that does not belong in each of the following groupings. Read these words in rows! 9. nodes of Ranvier myelin cell body Schwann cell 10. axon hillock neurotransmitters telodendria synaptic knobs 11. nucleus telodendria dendrites cell body 12. unipolar multipolar tripolar bipolar Use the lines to the right of the diagrams to identify the unipolar, bipolar, and multipolar neuron. 13. ___________________________ 14. ___________________________ 15. ___________________________ 16. Use a red pen or a red map pencil and label the pathway that a signal would take if it was exiting the cell body. In other words, locate the axon and draw a red arrow pointing from the cell body towards the telodendria Using the key choices, select the terms that match the following descriptions. Key Choices: A. afferent neuron E. Schwann cells I. myelin B. interneuron F. neurotransmitters J. synapse C. efferent neuron G. axon K. stimuli D. unipolar H. nodes of Ranvier L. multipolar 17. ____ Another name for a motor neuron. 18. ____ The fatty substance that fills a Schwann cell and provides protection for the axon. 19. ____ The point of close contact between the telodendrites of one neuron and the dendrites of another neuron. 20. ____ Another name for a sensory neuron. 21. ____ Gaps in between the Schwann cells. 22. ____ The shape that is most common to nerve cells. 23. ____ A neuron that conducts impulses away from the brain and the spinal cord to the muscles or glands. 24. ____ Some change that occurs within or outside the body, that cause signals to be sent via the nervous System, for example: a change in temperature. 25. ____ A neuron that conducts impulses toward the brain and the spinal cord from the extremities of the body. 26. ____ The specialized, fat-filled structure that acts as an insulating covering for the axon. 27. ____ The extension of the neuron that carries the messages away from the nerve cell body. Match the cell type with its characteristics. A. astrocyte B. oligodendrocyte C. Schwann cell D. microglia 28. _____ glial cell that has the ability to phagocytize microorganisms and waste products 29. _____ glial cell that helps to form the blood-brain barrier 30. _____ glial cell that produces a fatty, myelin-filled covering for the axons in the PNS 31. _____ glial cell that produces a fatty, myelin-filled covering for the axons in the CNS 32. _____ a “star-shaped” glial cell 33. Define (preferably in your own words) the meaning of the following terms: central nervous system: __________________________________________________________________ peripheral nervous system: ________________________________________________________________