Sarcomere Structure : Mnemonic

Remember the sequence: Zahir Is A Hungry Man

  1. Z line (Zwischen = between [German])
  2. I band
  3. A band
  4. H zone
  5. M line
Schematic representation of a sarcomere

Z is the final alphabet: Z lines represents the end of sarcomere

M for middle: M line represents the midline of sarcomere

I is a thin letter: I band has only thin filaments

H is a thick letter: H zone has only thick filaments

A is a hybrid of “I” and “H”: A band has both thin and thick filaments (remains constant during contraction)

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