Microscopic Muscle Anatomy & Physiology

Scientific name for muscle fiber bundle.

• Epimysium

• Fascicle

• Myofibril

• Myofilament

Membrane that covers several muscle fibers to form a bundle.

• Endomysium

• Epimysium

• Fascicle

• Perimysium

Tough connective tissue sheath that surrounds the entire muscle.

• Endomysium

• Epimysium

• Fascicle

• Perimysium

Connective tissue sheath that surrounds muscle fibers.

• Endomysium

• Epimysium

• Fascicle

• Perimysium

Long organelles in the myofibrils.

• Fascicle

• Myofilaments

• Sarcomere

• Sarcolemma

Found within sarcomeres and create the banding pattern.

• Fascicle

• Myofibril

• Myofilaments

• Sarcolemma

Made up of actin filaments.

• Fascicle

• Myofilaments

• Thick filament

• Thin filament

Made up of myosin filaments and contains ATPase.

• Myofibril

• Myofilament

• Thick filament

• Thin filament

Small, contractile units found in myofibrils.

• Myofibril

• Myofilaments

• Sarcomere

• Sarcolemma

Band created when think and thin filaments overlap.

• I band

• A band

• H-Zone

• M-line