6. epimysium A) 1, 5, 4, 3,2,6 B)6,2,5, 4,1,3 C96, 2, 4, 5, 1,3 D) 1, 3, 5, 6,4,
ID: 3513486 • Letter: 6
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6. epimysium A) 1, 5, 4, 3,2,6 B)6,2,5, 4,1,3 C96, 2, 4, 5, 1,3 D) 1, 3, 5, 6,4,2 E) 2,3, 1, 4, 6,5 le) 47. The figure above is an example of what type of muscle twitch contraction, where the musele is repeatedly stimulated before the end of relaxation phase causing increased tension with each new twitch or summation of twitches? A. treppe B. rigor mortis C. complete tetanus D. incomplete tetanus 48. Which of the following is true concerning isometric contraction? A. The muscle shortens but tension remains constant. B. The muscle lengthens but tension remains constant. C. The muscle tenses and shortens. D. The muscle tenses but length remains unchanged. E. The muscle lengthens and tension declines. 49. The primary source of fuel our muscles uses for a marathon race is which utilized by metabolism? A. glucose/anaerobic. B. ATP/Creatine phosphate systenm C. amino acids/pentose phosphate pathway. D. fatty acids/aerobic. E. fatty acids/anaerobic. 50. One reason why we can not use anaerobic glycolysis for continuous energy production is the build up of? A) lactic acid. B) pyruvate. C) mitochondria. D) ATP E) Calcium.Explanation / Answer
Ans 47...treppe
When repeated stimulus is given to a.muscle before the end of relaxation then the next tension develop is more than the previous one and so on upto a certain limit.this is known as treppe effect or staircase phenomenon
Ans 48..d
In.iso.metric contraction the length of the muscle remains constant but the tension increases
Just for ur knowledge I m adding here isotonic contraction is the one where length of the muscle changes but tone or tension remains same.
Ans 49...e...fatty acids and aerobic
Marathon is a long endurance event.anaerobic can't provide ATP for such a long event.it has to be aerobic.as there are limited glycogen reserves in our body so when the person starts running it first uses glucose from breakdown of glucose but when glycogen reserves falls it start using fatty acids as a fuel which is oxidised by aerobic respiration.
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