Which detail is given in the chapter about "Muscles are grouped into" in Exercise Effects And Recovery?
Muscles are grouped into bundles enclosed in a membrane.
○ Inspiration and expiration constitute breathing. (Fig.
○ Muscle contraction uses up energy, which comes from food.
○ The required energy for movements and other activities is obtained from food.
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This matches the chapter's stated information about "Muscles are grouped into". — Examisthan.com