Muscles and Their Functions

Skeletal muscles are also known as voluntary muscles. (True/False)

• Involuntary

• True

• Smooth muscles

• False

Smooth muscles are found in the walls of hollow organs such as the stomach and intestines. (True/False)

• Smooth muscles are only found in the heart

• False

• True

• Smooth muscles are only found in skeletal muscles

Cardiac muscles are striated like skeletal muscles. (True/False)

• True

• False

• Partially true

• Not applicable

Smooth muscles are under involuntary control. (True/False)

• True

• Depends on the individual

• Partially true

• False

Skeletal muscles are responsible for the movement of bones. (True/False)

• True

• Only in certain cases

• Partially true

• False

Smooth muscles help in the movement of food through the digestive system. (True/False)

• True

• Smooth muscles are only found in the heart

• False

• Smooth muscles are not involved in digestion

Cardiac muscles are found only in the heart. (True/False)

• True

• Cardiac muscles are found in the lungs

• Cardiac muscles are found in the brain

• False

Skeletal muscles are attached to bones by tendons. (True/False)

• True

• False

• Sometimes

• Only in certain animals

Smooth muscles are spindle-shaped and have a single nucleus. (True/False)

• Smooth muscles are triangular in shape and have multiple nuclei.

• Smooth muscles are star-shaped and have no nucleus.

• True

• False

Muscles work in pairs - when one muscle contracts, the other relaxes. (True/False)

• False

• True

• Muscles work independently

• Muscles work in groups