TEST 3

                 TEST  3  -  Topics for Essay Questions:


	Description and explanation of banding patterns within a myofibril in
        both relaxed and contracted states

	Types of skeletal muscle contractions – isotonic and isometric

	Energy supply for muscle contraction; role of ATP, aerobic and
        anaerobic pathways; alternative supplies of energy, oxygen, etc.

	Location, action, origin, and insertion of selected muscle groups,
        such as those described in Lab. Ex. 4

	Organization and role of membrane system, including sarcolemma,
        sarcoplasmic reticulum, and transverse tubules

       Compare and contrast the types of muscle tissue

	Compare and contrast subtypes of skeletal muscle fibers

	Detailed structure and function of myofilaments

	Detailed account of the mechanism of muscle contraction

	Detailed account of the transmission of nerve impulse and nerve
        message to neuromuscular junction, across the neuromuscular junction,
        and throughout the muscle fiber membrane system