If anyone can help me with these it would be greatly appreciated. My assignment is due tomorrow and I need help!!!
Activity 3: Effects of increases in stimulus intensity 2.How did the increase in voltage affect the amount of active force generated by the muscle?
Activity 6: Tetanus1. what begins at around 80 msec?
2. What is this condition called?
3. How does the trace at 130 stimuli/sec compare with the trace at 50 stimuli/sec?
4. What is this condition called?
5. At what stimulus frequency is there no further increase in force?
6. what is this stimulus called?
Activity 7: Fatigue1. In fatigue, what happens to the force production over time?
Activity 8: Isometric Contractions4. The graph shows a dip at muscle length = 90 mm. why is this?
5. What is the key in the isometric contraction?
Activity 9: Isotonic Contractions1. How much time does it take for the muscle to generate 0.5 grams of force?
2. At what point in the trace does the muscle shorten?
3. you can observe from the trace that the muscle is rising in force before it reaches the plateau phase. why doesn't the muscle shorten prior to the plateau phase?
4. Did it tale any longer for the muscle to reach it needed to move the weight?
5. How does the trace differ from the trace you generated with the .5 gram weight attached?
6. Examine the plot data and your numerical data. At what weight was the velocity of the contraction the fastest?
7. What happened when you attached the 2.0 gram weight to the muscle and stimulated the muscle? how did this trace differ from the other traces? what kind of contraction did you observe?
8. What kind of trace did you get?
9. What was the force of the contraction?
10. With the 1.0 gram weight, what kind of trace did you get? what was the force of the contraction?
11. With the 1.5 gram weight, what kind of trace did you get? what was the contraction?
12. With the 2.0 gram weight, what kind of trace did you get? what was the contraction?
13. Describe you four tracings and explain what has happened in each of them.
14. What muscle length(s) generated the fastest contraction velocity?
PLEASE HELP