7 Questions about Physiology
Requirements: 1. Your answers should be researched, well thought out and organized, well written, and demonstrate knowledge and a good effort on your part. 2. Do not depend on popular online sources as they are not always accurate and are not usually reviewed for accuracy. Unless they are textbooks, peer reviewed scientific publications, or from a fact-checked source like a high-quality periodical (ex: Scientific American) they may not be accurate. If you paraphrase or quote you need to cite the reference. There is no special citation format, but include: author’s names), title, date, source. 3. If a question says to list and describe or explain, be sure to list (a b,c or 1,2,3) and give a complete description or explanation. Answer all parts of a multipart question. 4. No need to rewrite the questions, but be sure to number them. 5. Word process and print out your answers in double spaced, size 12 font with single side printing of the pages. 6. Reread your answers and make appropriate corrections, editing, etc. Don’t rely on spell and grammar check software alone. 7. Use of ChatGPT or any other chatbot for communication to provide an answer will result in a failing grade for this assignment (F and 0 points). 1. What would be the effect of removing TC from the troponin complex and what condition would the muscle be in? (15 points) 2. Calcium plays a role in the contraction of skeletal and smooth muscle cells and is involved in both the contraction and relaxation of the cell. (40 points, 20 each a) How are the functions, sources, storage, release, etc. of Ca similar in skeletal and smooth muscle cell twitches? b) How are the functions, sources, release, etc. of Ca different between skeletal and smooth muscle? 3. What are the functions of ATP (and thus ATPase) in skeletal and smooth muscle cell contraction and relaxation. (20 points) 4. What is Starling’s law of the heart and what does it have to do with preload on the heart? (20 points) 5. LIST and describe 3 ways in which a skeletal muscle can be made to contract. (15 points) 6. Describe the role of myoglobin in muscle cells. (15 points) 7. How is excitation-contraction coupling the same and different in skeletal and cardiac muscle? (12 points)
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