What is the primary function of the biceps brachii?

• Closes the eye

• Adducts the arm

• Extends the leg

• Flexes the forearm at the elbow and supinates the hand

Which muscle is responsible for plantar flexion of the foot at the ankle?

• Deltoid

• Gastrocnemius

• Trapezius

• Brachioradialis

What action does the pectoralis major perform?

• Flexes and adducts the arm across the chest

• Extends the hand

• Elevates the ribs

• Flexes the thigh at the hip

Which muscle helps to extend the leg at the knee?

• Sartorius

• Soleus

• Orbicularis Oris

• Rectus femoris

What is the function of the trapezius muscle?

• Dorsiflexes the foot

• Raises the shoulder and pulls it back, extends the head

• Flexes the forearm

• Closes the mouth