Muscles Interactive Session

Which of the following is a cardiac muscle?

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Which of the following are smooth muscles?

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Line traversing the I band

• A line

• M line

• H line

• Z line

Which fiber has more myoglobin?

• Red fibers

• Intermediate fibers

• White fibers

• All of the above

What is the outer connective tissue covering of a muscle mass?

• Epimysium

• Perimysium

• Endomysium

• Sarcoplasm

What is the plasma membrane of a muscle called?

• Sarcolemma

• Sarcoplasm

• Sarcoplasmic Reticulum

• Sarcoma

What type of muscle is always multinucleated?

• Skeletal

• Smooth

• Cardiac

• All of the above

Which fiber type fatigues more readily?

• Red

• Intermediate

• White

• None of the above

Which of the following correctly identifies muscle components in order from largest to smallest?

• Fasciculi, muscle bundle, myofibril

• Fasciculi, muscle fiber, myofibril

• Muscle fiber, fasciculi, myofibril

• Muscle bundle, myofibril, fasciculi

Which of the following is NOT innervated by the autonomic nervous system?

• Skeletal

• Smooth

• Cardiac

• All of the above