#6.3.1
Muscles act in antagonistic pairs against an incompressible skeleton.
#6.3.2
Gross and microscopic structure of skeletal muscle. The ultrastructure of a myofibril.
#6.3.3
The roles of actin, myosin, calcium ions and ATP in myofibril contraction.
#6.3.4
The roles of calcium ions and tropomyosin in the cycle of actinomyosin bridge formation. (The role of troponin is not required.)
#6.3.5
The roles of ATP and phosphocreatine in muscle contraction.
#6.3.6
The structure, location and general properties of slow and fast skeletal muscle fibres.