Skeletal Muscle Structure

What is the main function of the muscular system?

• Movement

• Blood filtration

• Excretion of waste

• Calcium homeostasis

How do muscles produce movement?

• Muscles contract by pushing bones

• Muscles contract by pulling bones

• Muscles contract by pushing and pulling bones

• Muscles do not produce movement

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

• Maintain posture

• Stabilize joints

• Generate heat

• Filter toxins and excess waste from blood

What do prime movers (agonists) do?

• Most responsible for producing a certain movement

• Oppose or do the reverse of a certain movement

• Stabilizing across a joint

• None of the above

What do antagonists do?

• Most responsible for producing a certain movement

• Oppose or do the reverse of a certain movement

• Stabilizing across a joint

• None of the above

What do synergists do?

• Most responsible for producing a certain movement

• Oppose or do the reverse of a certain movement

• Stabilizing across a joint

• None of the above

Which of the following is NOT a type of muscle tissue?

• Smooth

• Rough

• Cardiac

• Skeletal

TRUE OR FALSE: Every muscle is its own organ with its own blood vessels, nerves, and connective tissues.

• True

• False

Tags

NGSS.HS-LS1-2

Which of the following is the correct order of muscle structures going from largest to smallest

• Muscle --> Muscle fascicles --> Muscle fibers --> Myofibrils --> Sarcomeres

• Sarcomeres --> Myofibrils --> Muscle fibers --> Muscle fascicles --> Muscles

• Muscle --> Muscle fibers --> Muscle fascicles --> Sarcomeres --> Myofibrils

• Muscle fibers --> Muscle fascicles --> Muscle --> Myofibrils --> Sarcomeres

Tags

NGSS.HS-LS1-2

Which of the following is also known as a muscle cell?

• Muscle

• Myofibril

• Sarcomere

• Muscle fiber