Muscular System Quiz

Which type of muscle tissue is attached to bones and skin?

• Cardiac muscle

• Smooth muscle

• Skeletal muscle

• Voluntary muscle

Which type of muscle tissue is found only in the heart?

• Cardiac muscle

• Smooth muscle

• Skeletal muscle

• Voluntary muscle

Which type of muscle tissue is found in the walls of hollow organs?

• Voluntary muscle

• Skeletal muscle

• Smooth muscle

• Cardiac muscle

What is the main characteristic of muscle tissue that allows it to receive and respond to stimuli?

• Excitability

• Contractility

• Extensibility

• Elasticity

What is the function of muscles in producing movement?

• Generate heat as they contract

• Maintain posture and body position

• Stabilize joints

• Produce movement

Which connective tissue sheath surrounds the entire muscle?

• Endomysium

• Perimysium

• Epimysium

• Fascia

What is the smallest contractile unit of a muscle fiber?

• Muscle fiber

• Sarcomere

• Myofibril

• Myofilament

What is the role of the sarcoplasmic reticulum in muscle contraction?

• Provides oxygen for aerobic respiration

• Transmits action potentials along the sarcolemma

• Generates ATP for muscle contraction

• Stores and releases calcium ions

What is the process by which myosin heads attach to actin and cause muscle contraction?

• Cocking of myosin head

• Cross bridge detachment

• Working stroke

• Cross bridge formation

What is the main source of energy for muscle contraction?

• Glucose

• Lactic acid

• ATP

• Creatine phosphate