muscular system review

The Light I Band consists of... 

• Myosin filaments only
• Actin filaments only
• Myosin and actin filaments
• none of the above

The thick filament is composed of: 

• Myosin
• Actin

The thin filament is composed of: 

• Myosin
• Actin

Fill-in-the-blank! Muscle, Fascicle, _____, Myofibril

• Muscle fiber
• Myofilament
• Sarcomere
• Actin 

Which of the following is NOT a function of the muscular system?

• Heat production
• Joint stability
• Movement
• Communication

Which of the following muscle types is NOT striated?!

• Smooth
• Skeletal 
• Cardiac
• All of the above are striated

Tough connective tissue sheath that surrounds the entire muscle.

• Endomysium

• Epimysium

• Fascicle

• Perimysium

Connective tissue sheath that surrounds muscle fibers.

• Endomysium

• Epimysium

• Fascicle

• Perimysium

Small, contractile units found in myofibrils.

• Myofibril

• Myofilaments

• Sarcomere

• Sarcolemma

Which label is the muscle fiber?

• A

• B

• C

• D