Which of the following statements relating to smooth muscle is true? a. single-unit smooth muscles contract rhythmically due to gap junctions b. multi-unit smooth muscles are arranged like skeletal muscle motor units c. visceral smooth muscles exhibit spontaneous action potentials d. multi-unit smooth muscles exhibit graded contractions in response to neural stimuli e. all of the above

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A: It is experienced by many and characterized by pain and stiffness in muscle.

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A: The muscular tension (Y axis) after applying stimuli to the muscle fibre is depicted in the picture…

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A: Isometric and isoconcentric

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A: Sarcomeres contract during muscle contraction.

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A: Option:B   phasic contractions

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