Repeating units {sarcomere} can have alternating dark A bands and light I bands. Dark Z line is in light I-band middle, where actins connect. Light H zone is in dark A-band middle and has thick myosin. Light H zone has middle dark M line, where myosins meet.
Physical Sciences>Chemistry>Biochemistry>Protein>Muscle Contraction
5-Chemistry-Biochemistry-Protein-Muscle Contraction
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Date Modified: 2022.0224