Muscle Types: Structure and Function Quiz

What is the shape of skeletal muscle cells?

• Spindle-shaped

• Branched and cylindrical

• Long and cylindrical

• Irregular and flat

How many nuclei does a smooth muscle cell typically contain?

• Multiple nuclei

• No nucleus

• One nucleus

• Two nuclei

Which muscle type has striations (stripes)?

• Smooth muscle only

• Skeletal and cardiac muscle

• Cardiac and smooth muscle

• All three muscle types

Which of the following muscle types is voluntary?

• Cardiac muscle

• Smooth muscle

• Skeletal muscle

• Both cardiac and smooth muscle

What is the shape of cardiac muscle cells?

• Long and cylindrical

• Spindle-shaped

• Branched and cylindrical

• Flat and irregular

How many nuclei are typically found in a skeletal muscle cell?

• One nucleus

• Multiple nuclei

• No nucleus

• Two nuclei

Which muscle type is found in the walls of hollow organs such as the stomach and intestines?

• Skeletal muscle

• Cardiac muscle

• Smooth muscle

• Both skeletal and cardiac muscle

A student is examining a muscle cell under a microscope and notices it is spindle-shaped, has one nucleus, and shows no striations. Which muscle type is this most likely to be?

• Skeletal muscle

• Cardiac muscle

• Smooth muscle

• Both skeletal and smooth muscle

A muscle cell is observed to be branched, striated, and has one or two nuclei. Based on these characteristics, which muscle type does it belong to, and is it voluntary or involuntary?

• Skeletal muscle; voluntary

• Cardiac muscle; involuntary

• Smooth muscle; involuntary

• Cardiac muscle; voluntary

Which of the following correctly matches a muscle type with both its cell shape and its voluntary/involuntary nature?

• Smooth muscle — long cylindrical — voluntary

• Skeletal muscle — spindle-shaped — involuntary

• Cardiac muscle — branched cylindrical — involuntary

• Skeletal muscle — branched cylindrical — voluntary