11.1 Types and Characteristics of Muscular Tissue

1			The ability of the muscle cell to stretch under tension is known as
			A)	excitability.
			B)	conductivity.
			C)	extensibility.
			D)	elasticity.
2			The ability of the muscle cell to return to its initial length after being stretched is called ________________.
			A)	excitability
			B)	conductivity
			C)	extensibility
			D)	elasticity

11.2 Microscopic Anatomy of Skeletal Muscle

3			The segment from one Z disc to the next is called a(n)
			A)	A band.
			B)	sarcomere.
			C)	H band.
			D)	I band.
4			The thick myofilament consists of many molecules of this protein.
			A)	myosin
			B)	actin
			C)	tropomyosin
			D)	troponin

11.3 The Nerve Muscle Relationship

5			This chemical carries the stimulating message across the neuromuscular junction.
			A)	synapse
			B)	myosin
			C)	potassium
			D)	acetylcholine

11.4 Behavior of Skeletal Muscle Fibers

6			The head of myosin attach to actin to form a
			A)	sarcomere.
			B)	tropomyosin block.
			C)	power stroke.
			D)	cross-bridge.

11.5 Behavior of Whole Muscles

7			The type of muscle contraction where the muscle contracts but exhibits no change in length is called
			A)	isometric contraction.
			B)	isotonic contraction.
			C)	concentric contraction.
			D)	eccentric contraction.

11.6 Muscle Metabolism

8			The most efficient means of ATP production is called
			A)	substrate level phosphorylation.
			B)	anaerobic respiration.
			C)	aerobic respiration.
			D)	phosphagen system.
9			Which of the following is not relative to muscle strength?
			A)	muscle size
			B)	fascicle arrangement
			C)	temporal summation
			D)	endurance

11.7 Cardiac and Smooth Muscle

10			Visceral muscle is also known as
			A)	multi-unit smooth muscle.
			B)	single-unit smooth muscle.
			C)	dense bodies.
			D)	autorhythmic single-unit smooth muscle.