Motor neuron 1. 4 Muscle fiber nucleus Myofibril of muscle fiber Figure 10.15. Details of the neuromuscular junction. O bluedoor, LLC The numbers 1-4 indicate the chain of events that occur at the neuromuscular junction. Put these events in chronological order by placing a 1 in the blank before the first event, etc. Refer back to Figure 10.15 for information. Acetylcholine diffuses across the synaptic cleft. Nerve impulse reaches the axon terminal. Synaptic vesicles release acetylcholine into the synaptic cleft. Acetylcholine binds to receptors at the motor end plate. Answer the following questions. 1. Which event listed above is the point at which myasthenia gravis interrupts the process? Explain why. 2. One treatment for myasthenia gravis is a medication that blocks the activity of acetylcholinesterase. Suggest why this might be a successful treatment.
Motor neuron 1. 4 Muscle fiber nucleus Myofibril of muscle fiber Figure 10.15. Details of the neuromuscular junction. O bluedoor, LLC The numbers 1-4 indicate the chain of events that occur at the neuromuscular junction. Put these events in chronological order by placing a 1 in the blank before the first event, etc. Refer back to Figure 10.15 for information. Acetylcholine diffuses across the synaptic cleft. Nerve impulse reaches the axon terminal. Synaptic vesicles release acetylcholine into the synaptic cleft. Acetylcholine binds to receptors at the motor end plate. Answer the following questions. 1. Which event listed above is the point at which myasthenia gravis interrupts the process? Explain why. 2. One treatment for myasthenia gravis is a medication that blocks the activity of acetylcholinesterase. Suggest why this might be a successful treatment.
Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN:9781337408332
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Chapter35: Structural Support And Movement
Section: Chapter Questions
Problem 13SQ: _______ from a motor neuron excites a muscle fiber. a. ACh b. Calcium c. GABA d. Phosphate
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