Muscle Anatomy Quiz

What percentage of a person's body weight is made up of muscles?

• 30%

• 42%

• 50%

• 60%

Which type of muscle tissue is known as voluntary or striated muscles?

• Cardiac

• Smooth

• Skeletal

• Involuntary

What is the primary function of the sternocleidomastoid muscle?

• Flexes and rotates the thigh

• Rotates and laterally flexes neck

• Extends leg and assists flexion of thigh

• Flexes arm and forearm

Which muscle is responsible for plantar flexing the foot and flexing the knee?

• Rectus femoris

• Gastrocnemius

• Tibialis anterior

• Sartorius

What action does the deltoid muscle perform?

• Raises and rotates arm

• Flexes and rotates the thigh

• Compresses abdomen

• Draws head back and to the side

What is the primary function of the soleus muscle?

• Extends forearm

• Flexes knee and rotates it outward

• Plantar flexes foot

• Abducts and rotates thigh

Which muscle is responsible for extending the forearm?

• Biceps femoris

• Triceps

• Gluteus medius

• Soleus

What action is the latissimus dorsi muscle involved in?

• Flexes and rotates leg; extends thigh

• Adducts, extends, and rotates arm; used during swimming

• Plantar flexes foot

• Extends and rotates thigh

Which muscle flexes the knee and rotates it outward?

• Semitendinosus

• Gluteus maximus

• Biceps femoris

• Soleus

What is the function of the Achilles tendon?

• Extends forearm

• Flexes and rotates leg; extends thigh

• Plantar (sole of the foot) flexion and extension of ankle

• Abducts and rotates thigh