Draw the diagram of a sarcomere of skeletal muscle showing different regions.

2 Define sliding filament theory of muscle contraction. 3 Describe the important steps in muscle contraction. 4 Name the type of joint between the following:-  (a) atlas/axis(b) carpal/metacarpal of thumb(c) Between cranial bones(d) Between pubic bones in the pelvic girdle.  5 Write the differences between :(a) Actin and Myosin(b) Red and White Muscles(c) Pectoral and Pelvic Girdle.