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slega [8]
3 years ago
14

Why do the different skeletal muscle fiber types vary in the speed and duration of their twitches?

Medicine
1 answer:
IrinaVladis [17]3 years ago
5 0

Answer:

The different skeletal muscle fiber types vary in the speed and duration of their twitches due to -

b) They vary in the rate of hydrolysis of ATP

c) They vary in the removal of Ca+ from the cytosol

Explanation:

There are mainly two types of muscle fibers , i.e.

a) slow twitching, long contraction duration( type I fibers)

b) First twitching but short duration of contraction. ( type II fibers).

Now think of the physiology of muscle. Two components are important, cytosolic Ca++ concentration and Availability of ATP. K+ is related to the action potential ( none or all law, there is no relation to the duration with respect to the potassium). For long contraction muscle fibers need a more steady supply of ATP, and also consistent high concentration of cytosolic Ca++ for muscle contraction to happen. So, these two factor is important for the duration of twitching. So the answer is option f .

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Answer:

c. remittance advice

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Hope This Helped

6 0
2 years ago
Basic Life and/or Disability Evaluation Services and Work-Related or Medical Disability Evaluation Services are only used when t
Viktor [21]

Answer:

True

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4 0
3 years ago
The testes functions best when they are ______ the body's temperature.
Sidana [21]

Answer: slightly cooler than

Explanation:

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3 years ago
During the accumulation of urine, the bladder distends, allowing stretch receptors in the transitional epithelium to be stimulat
Drupady [299]

Answer:

The given statement is TRUE

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4 0
3 years ago
Identify the characteristics or examples of the catabolic and anabolic pathways.
VARVARA [1.3K]

Answer:

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Explanation:

Anabolic pathways are those that require energy to synthesize large molecules. Catabolic pathways are those that generate energy by breaking down larger molecules.

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