Unit 5 EXAM: Muscular System - 24-25

Front

What is the thick myofibril filament of a sarcomere composed of?

Back

Myosin is the thick myofibril filament of a sarcomere.

Front

Identify the muscle highlighted in the image.

Back

Rectus Abdominals is the muscle highlighted.

Front

What are muscles that oppose one another called?

Back

Antagonists are muscles that oppose one another.

Front

Which muscle is the prime mover during flexion of the leg?

Back

Hamstring is the prime mover during leg flexion.

Front

What muscle flexes the head and rotates it toward the opposite side?

Back

Sternocleidomastoid flexes the head and rotates it toward the opposite side.

Front

What is the role of myosin in muscle contraction?

Back

Myosin interacts with actin to facilitate muscle contraction.

Front

Define agonist muscles.

Back

Agonist muscles are the primary muscles responsible for movement.

Front

What is the function of the rectus abdominals?

Back

The rectus abdominals flexes the spine and stabilizes the pelvis.

Front

Explain the term synergist in muscle movement.

Back

Synergist muscles assist the agonist in performing a movement.

Front

What is the role of the gastrocnemius muscle?

Back

The gastrocnemius muscle is involved in plantar flexion of the foot.