Skeletal muscles are in antagonistic sets because

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BlackTom AI · Accepted Answer

The question asks about why skeletal muscles are organized in antagonistic sets.
Option 1: muscles cannot lengthen by themselves. This is true in the sense that muscles can only actively contract; they rely on antagonists to passively lengthen the stretched fibers, so this statement captures a key functional reason for antagonistic sets.
Option 2: muscles push but cannot pull. This is incorrect because skeletal muscles pull on bones to generate movement; there is no active pushing by muscles themselves.
Option 3: they generate more force by pulling together. Antagonistic muscles do not pull together to generate more force in the same lever; one contracts while the other relaxes to allow movement, so this portrayal is inaccurate.
Option 4: there is an increase in metabolic efficiency if they are present in antagonistic sets. While antagonistic pairs enable controlled movement, the idea that they inherently increase metabolic efficiency is not a defining or universally accurate statement about why they exist.
Option 5: they do not like one another. This anthropomorphic phrasing is not a valid or scientific explanation for antagonistic muscle arrangement.
Overall, the correct concept is that skeletal muscles cannot lengthen actively on their own, so antagonistic pairs are required to return a limb to its resting length and to enable controlled motion through opposing contraction and relaxation.

W25 BIOL D006A 02Y Form/Funct In The Biolgcl Wrld BIOL-6A_Exam 3 - Winter 2025

Skeletal muscles are in antagonistic sets because

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W25 BIOL D006A 02Y Form/Funct In The Biolgcl Wrld BIOL-6A_Exam 3 - Winter 2025

Skeletal muscles are in antagonistic sets because

View Explanation

Log in for full answers

Similar Questions

Antagonists muscle group: A to B: EJ __extenders __ B to A: EJ __ extenders __ Antagonists are passively __ lengthening __ from A to B and passively __shortening __ from B to A.

Question1.20 Which of the following does NOT directly impact force production potential of a muscle? Muscle volume Muscle fibre type Neural recruitment frequency Muscle fibre Pinnation Muscle length ResetMaximum marks: 1 Flag question undefined

Stretching exercises are designed to lengthen the muscle tissue and help it relax to its normal resting state.

What molecular event terminates muscle contraction in skeletal muscle?

Which of the following best describes the function of the sarcoplasmic reticulum in skeletal muscle fibers?

Question at position 38 Why is the regulation of calcium in the sarcoplasm important for muscle function?To enhance the muscle's ability to relaxTo increase the availability of oxygen to the muscle fibersTo prevent muscle contraction from becoming too slowTo avoid abnormal muscle contraction

Muscle tissue has all of the following properties except ________.

Question at position 65 Skeletal muscle is considered voluntary because it cannot perform actions subconsciously.TrueFalse

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Antagonists muscle group: A to B: EJ extenders B to A: EJ extenders Antagonists are passively lengthening from A to B and passively shortening from B to A.