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What is the length tension relationship in skeletal muscle?

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Deanna Hettinger
Deanna HettingerLv2
25 Mar 2020

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

Waves are traveling on a uniform string under tension. For each of the following changes, is the wave speed increased, decreased, or unchanged? Indicate your answers with ā€œIā€ for increased, ā€œDā€ for decreased, or ā€œUā€ for unchanged. (a) The string tension is doubled while its mass and length are constant. (b) The string is folded in half and the tension is constant. (c) The string is cut to half its original length and the tension is constant. (d) The string is cut to half its original length and the tension is doubled.

A standing wave is set up in a string of variable length and tension by a vibrator of variable frequency. Both ends of the string are fixed. When the vibrator has a frequency f, in a string of length L and under tension T, n antinodes are set up in the string.

(a) If the length of the string is doubled, by what factor should be the frequency be changed so that the same number of antinodes is produced?

(b) If the frequency and length are held constant, what tension will produce n+1 antinodes?

(c) If the frequency is tripled and the length of the string is halved, by what factor should the tension be changed so that twice as many antinodes are produced?

Which statement best describes how the body moves?

(a) Skeletal muscles, which are made of fibers, nerves and blood vessels, contract in order to make the body move.

(b) Cardiac and smooth muscles are made of muscle fibers, nerves, and cartilage and are responsible for all movement in the body.

(c) Smooth muscles, which are made of blood vessels, fibers, and nerves, allow for all activities that use slow-twitch muscle fibers.

(d) Skeletal muscles, which are made of tendons, nerves, and fibers, line the body cavities and allow for support and movement.

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