If gene therapy in the future would allow one to artificlally alter the expression of muscle fibers for athletic success, which Increase In fiber type would make the most sense for the following activities? Long-distance swimming Triathlon Shot put Standing broad jump Marathon running Running the 400- meter dash Long-distance cycling Dunking a basketball Competitive diving Baseball pitching Slow-Twitch Fibers Fast-Twitch Fibers

If gene therapy in the future would allow one to artificlally alter the expression of muscle fibers for athletic success, which Increase In fiber type would make the most sense for the following activities? Long-distance swimming Triathlon Shot put Standing broad jump Marathon running Running the 400- meter dash Long-distance cycling Dunking a basketball Competitive diving Baseball pitching Slow-Twitch Fibers Fast-Twitch Fibers

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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How is the list below to be properly put in order to describe a muscular contraction? 1. Calcium causes exocytotic release of Acetylcholine into the synaptic gap; all this happens at an area called the neuromuscular junction2. ATP is consumed which allows myosin to "pivot" the myosin head, which pulls actin toward it.3. This process is repeated multiple times and is called the "sliding filament theory".4. Myosin filaments perform "crossbridging".5. Calcium is released and circulated throughout the muscle cell6. The brain predicts the action necessary and decides which muscles and how many "motor units" are needed to perform that action.7. Tropomyosin moves to reveal the active site of the F-Actin strand8. Upon reception of a calcium ion, the Troponin complex becomes activated9. Proteins embedded in the Sarcolemma receive enough of the ACH neurotransmitter to generate an electrical impulse.10. The electrical impulse is perpetuated throughout the muscle fiber.11. A nervouse impulse is…
Compare the rate of Ca2+ release from the sarcoplasmic reticulum to the rate of Ca2+ return back to the sarcoplasmic reticulum. Which of the following is true? The rate of ca2+ returns is faster than the rate of ca2+ release The rate of ca2+ release is faster than the rate of ca2+ return Rates of Ca2+ release from and return to the sarcoplasmic reticulum are the same.
You are helping Eldon Tyrell create replicants to work in off-world colonies. You want to design muscle cells that can produce the most tension. These muscle cells will have an abundant amount of: Moments that will be lost in time, like tears in rain... Sarcolemma Mitochondria O Myofibril
Can you modify this experiment so that the mass lifted by the muscle contraction continues to increase for every trial? If yes, explain how it should be modified. If no, explain why.
The sliding filament model depicts how myosin motors attached to actin lead to muscle contraction. This process proceeds in a precise series of events. Indicate which of the following shows the correct order of steps in the sliding filament model. Group of answer choices Myosin binds ATP; myosin tightly binds actin; power stroke; myosin releases actin Myosin binds GTP; myosin releases actin; power stroke; myosin tightly binds actin Actin binds ATP; power stroke; myosin tightly binds actin; actin releases ADP Actin binds ADP; myosin releases actin; power stroke; actin releases ADP
Describe the position where wrist and finger are in full extension. What sensation will be felt in this position? What explains this sensation that you felt when the wrist and fingers were positioned in extension? *NOTE: Apply any of the following concepts to the explanation as deemed appropriate and connected to the situation above: Mucle Contraction, Concentric Contraction, Isometric Contraction, Eccentric Contraction, Force Velocity Curve, Stretch Reflex, Reciprocal Inhibition, Autogenic Inhibition, Length-Tension Relationship
51.
Calcium initiates smooth muscle contraction by leading to the phosphorylation of calcium channels leading to the phosphorylation of myosin • activating myosin light chain phosphatase removing tropomyosin from actin
What event occurs immediately before the movement of tropomyosin? Initiation of the power stroke Cross bridge formation Active sites on actin are revealed Release of calcium from terminal cisternae Troponin changes shape
Muscular endurance is defined as the: O a) ability of a muscle to contract repeatedly over an extended period of time b) amount of force a muscle can produce with a single maximal effort O c) ability to move the joints through a full range of motion O d) amount of time required to contract a muscle completely
How would ine generate more muscle tension to pick up something heavy? Increase activation of motor units Increase muscle tone Decrease calcium release Decrease muscle hypertrophy Decrease muscle hyperplasia
I am doing an experiment where I am test muscle fatigue in both your dominant and no dominant arm. So going to do 5 sets of fifty squeezes using a ball and record the amount of time it takes to get to fifty squeezes as fast as I can without rest between sets. My hypothesis is that the non dominant arm will get more fatigued faster than my dominant arm. My question would be I am confused as to what the independent and dependent variable would be.