muscular system Eite

What muscle
   
is this?

• Gastrocnemius
• Tibialis Anterior
• Extensor Digitorum Longus
• Plantaris

• In the diagram above, the biceps is contracting while the triceps is relaxed
• In the diagram above, the biceps is relaxed while the triceps is contracting
• In the diagram above, the biceps and the triceps are both relaxed

What is the name of the functional unit of the muscle?

• Myosin

• Actin

• Sarcomere

• Muscle cell

The name of the theory that explains muscle contractions

• fast twitch fibers

• sliding filament theory

What do muscle contraction and relaxation require?

• Energy (ATP)

• Oxygen

• Enzyme

• Sunlight

The thin filaments of the sarcomere are called

• Actin

• Myosin

• Fibers

• Myofibril

In the sliding filament theory, which filaments slides.....

• the thick filaments ( Myosin)slides toward the thinfilaments

• the thin ( actin), slides toward the thick filaments

• Both filaments