B.1.3 Muscular function quiz (SL)

What is the main function of skeletal muscles?

• Moving the skeleton

• Pumping blood to tissues

• Contracting without thinking

• Generating body heat

What is the term for the ability of a muscle to return to its original shape after being stretched?

• Elasticity

• Extensibility

• Contractility

• Atrophy

What is the main energy 'currency' in living cells?

• Ca2+

• ADP

• ATP

• PCr

What is the main function of skeletal muscles?

• Moving the skeleton

• Pumping blood to tissues

• Contracting without thinking

• Generating body heat

What is the term for the process of muscle contraction without a change in muscle length?

• Isometric

• Isotonic concentric

• Isotonic eccentric

• Isokinetic

Which type of muscle is found in the walls of blood vessels and hollow organs?

• Smooth muscle

• Skeletal muscle

• Cardiac muscle

• Striated muscle

What is the ability of a muscle to be stretched beyond its normal resting length called?

• Contractility

• Extensibility

• Elasticity

• Atrophy

Which type of muscle fibers are mainly slow-twitch and fatigue resistant?

• Type I

• Type IIa

• Type IIx

• Type III

What is the role of the antagonist muscle in joint movements?

• Prevents unwanted actions

• Stabilizes body positions

• Opposes the moving muscle

• Causes movement

Which type of muscle contraction involves muscles exerting force while lengthening?

• Isometric

• Isotonic concentric

• Isotonic eccentric

• Isokinetic