Guided reading questions GRQ 2 Cells of the nervous system Learning Objectives 8 Describe the structure and function of the organs within the central and peripheral nervous system and how they interact 9 Compare and contrast the function of the sensory afferent and motor efferent divisions of the peripheral nervous system 10 Differentiate the function of a neuron and neuroglial cells 11 Characterize the structure and function of a neuron cell body axon and dendrite 12 Classify the function of neurons based on their structure 13 Distinguish the function neuroglia found in the CNS and PNS 14 Describe the structure and purpose of myelin sheath Read Modules 4 5 11 1 11 2 Do not hesitate to use the web when a question is not specifically addressed in the textbook Q1 Describe in your own words the difference between a The central and the peripheral nervous systems b The afferent and the efferent divisions Q2 For each component of the nervous system below describe if it is associated with the sensory integrative or motor functions a Central nervous system b Peripheral nervous system c Afferent division d Efferent division Q3 Create your own version of Figure 11 2 based on your life Although step 2 will likely be the same steps 1 and 3 should differ from the example given in the book Q4 Define in your own words the following terms related to the structure of a neuron Cell body Nissl bodies Neurofibrils Dendrites Axon Axon hillock Telodendria Axolemma Axoplasm Axon terminal synaptic knob Receptive Region Conducting Region Secretory Region Q6 Copy or create your own drawing of a neuron that includes each of the elements outlined in Q5 above be sure to label the components correctly Q7 True False Explain Most neurons have a single axon Q8 True False Explain Most neurons have multiple dendrites Q9 What organelle do neurons lack and how does this relate to their life cycle Q10 What distinguishes a neuron from a neuroglia cell Hint you might need to explore beyond your book Q11 Describe in your own words the function and location of each of the 6 types of neuroglia Focus on the functions rather than structure and limit yourself to 2 sentences per each neuroglial cell Neuroglia Location Summary Function 1 2 3 4 5 6 Q12 What is myelin sheath Describe in your own words Q13 Compare what you would expect in myelinated vs unmyelinated neurons Q14 Describe the three differences in myelination between the peripheral and central nervous systems Hint there are three major differences
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