Hsc 308 exam 1 - Study guides, Class notes & Summaries

HSC 308 Exam 1 Questions and Answers – Updated 2024 What is a motor unit - Answer-A motor neurom and all fibers it innervates Describe the role of calcium during muscle contraction - Answer-Ca2+ binds to troponin, the troponin Ca2+ complex moves allowing myosin and actin to bind What is the role of Titin in the sarcomere - Answer-Binds with Ca2+ increasing muscle force, stabilizes sarcomere, centers myosin Major differences between Type I and Type II fibers - Answer-- Type 1(marathon ru...

HSC 308 Exam 2 Questions and Answers – updated 2024 The Respiratory Quotient (RQ) is the ratio of oxygen consumed to carbon dioxide produced T or F - Answer-False When determining the non-protein respiratory quotient (RQ) by simply ignoring protein's contribution to metabolism is a valid approach T or F - Answer-True Under most circumstances the RER can be considered equivalent to RQ T or F - Answer-True A RER value of 0.80 would reflect what relative contribution of carbs and fats...

HSC 308 Final Exam Questions and Answers Describe how air temperature and humidity changes as altitude increases and what the potential effect on performance would be. - Answer-- Air temp: Temp decreases 1 degree Celsius per every 150 meter ascent. In an athlete's situation exercising at a higher altitude may result in a colder environment. they may encounter decreased contractile force of muscles fibers as well as shortened velocity and decrease power of the muscles. Overall, causing a...