HK 2270 Study Guide - Midterm Guide: Sodium Channel, Neuromuscular Junction, Skeletal Muscle

• School: University of Guelph
• Department: Human Kinetics
• Course: HK 2270
• Professor: Lori Ann Vallis

Document Summary

You may use text, figures or a combination of both to answer the questions. Please keep in mind that you must submit your answer electronically in. Pear, so while it is acceptable to hand write or draw your answer, you will need to somehow convert this answer to an electronic file (eg: scan it) and post it as a pdf or word document. 1a) describe all steps involved in passing an action potential from a motor neuron to a skeletal muscle fibre (ie. at a neuromuscular junction). Step 1: the action potential passes down the nerves toward the muscles. It continues until it reaches the voltage-gated calcium channels. Step 2: these calcium-gated channels are opened, allowing calcium to flux inside of the cell. Step 3: the stored vesicles of the neurotransmitter acetylcholine fuse with the plasma membrane, and as a result, release the ach. Step 4: the released acetylcholine does 1 of 3 things;