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Tissues, Organs and Organ Systems in Plants and Animals — BIOLOGY STD 7 — Question

ICSE BoardEnglish MediumSTD 7BIOLOGYTissues, Organs and Organ Systems in Plants and Animals3 Marks
Question
Differentiate between:
voluntary muscle and involuntary muscle.
✓

Answer

Voluntary muscle :
  • These muscles are under our control or will.
  • These muscles have many nuclei.
  • These muscles are present in our limbs.
  • These muscle, are also called striated muscles as they have dark and light bands.
  • They are cylindrical but do not branch.
involuntary muscle :
  • These muscles are not under our control or will.
  • These muscles have one nucleus.
  • These muscles are present in the internal organs of body.
  • These muscles are also called unstriated muscles as they do not have striations.
  • They are spindle shaped.

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