Muscle Physiology Quiz

What type of muscle is known as voluntary muscle?

• Cardiac muscle

• Striated muscle

• Involuntary muscle

• Smooth muscle

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

• Skeletal muscle

• Smooth muscle

• Striated muscle

• Cardiac muscle

What is the smallest contracting unit of skeletal muscle?

• Muscle fiber

• Sarcomere

• Myofibril

• Fibril

Which nervous system regulates smooth muscle?

• Autonomic nervous system

• Somatic nervous system

• Peripheral nervous system

• Central nervous system

What is the primary function of tendons of origin?

• Support muscle fibers

• Facilitate muscle contraction

• Attach muscle to immovable bone

• Attach muscle to movable bone

Which type of muscle has intercalated discs?

• Smooth muscle

• Skeletal muscle

• Striated muscle

• Cardiac muscle

What is the role of calcium ions in muscle contraction?

• They provide energy

• They displace tropomyosin

• They form cross bridges

• They relax the muscle

Which type of muscle is capable of rapid contractions?

• Smooth muscle

• All muscle types

• Cardiac muscle

• Striated muscle

What is the primary energy source for muscle contraction?

• Glucose

• Lactic acid

• Creatine phosphate

• Fatty acids

What happens during the relaxation period of muscle contraction?

• Calcium ions are released

• Myosin heads attach to actin

• Muscle fibers shorten

• Calcium ions are pumped back into the sarcoplasmic reticulum