LT5.2 Muscle Anatomy

The part of the sarcomere that A (green) refers to is the?

• Z Line
• M Line
• H Line
• A Line

The part of the sarcomere that B (orange) refers to is the?

• Z Line
• M Line
• H Line
• A Line

A sarcomere is

• a protein filament or fiber.

• the basic contractile unit of muscle contraction.

• an organelle.

• an organ.

The part of the sarcomere that C (Blue) refers to is the?

• Actin
• Myosin
• Troponin
• Tropomyosin

The part of the sarcomere that D (Red) refers to is the?

• Actin
• Myosin
• Troponin
• Tropomyosin

The epimysium covers

• the entire muscle.

• the fascicle.

• the muscle fiber.

• the myofibril.

Which connective tissue surrounds the fascicle?

• Epimysium

• Perimysium

• Sarcolemma

• Endomysium

What is another name for #9 (cell membrane)?

• Sarcomere

• Sarcolemma

• Myofibril

• Myofiber

Connective tissue that attaches muscle to bone.

• Epimysium
• Tendon
• Perimysium
• sarcolemma

Which label is the myofibril?

• A

• B

• C

• D