Muscle Anatomy Practice

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 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

What zone/band of the sarcomere is represented by yellow.

• I Zone/Band
• A Zone/Band
• H Zone/Band
• M Zone/Band

What zone/band of the sarcomere is represented by pink.

• I Zone/Band
• A Zone/Band
• H Zone/Band
• M Zone/Band

What state is the sarcomere in #1

• Relaxed
• Contracting
• Fully Contracted
• None of the above

What state is the sarcomere in #2

• Relaxed
• Contracting
• Fully Contracted
• None of the above

Thin filaments in a myofibril are

• Sarcomeres
• Sarcoplasm
• Actin
• Myosin

Thick filaments are in a myofibril are

• ATPase
• Sarcoplasmic reticulum
• Actin
• Myosin

What layer of connective tissue covers the muscle fiber?

• epimysium
• endomysium
• perimysium