Which artery supplies blood to the muscles of the face?

The facial artery is primarily responsible for supplying blood to the muscles of the face. This artery branches from the common carotid artery and provides oxygenated blood to various structures in the face, including facial muscles, skin, and tissues. It travels along the lower jaw and ascends towards the eye, branching off to supply the zygomatic region, the lips, and the nose, ensuring that the dynamic musculature in the face receives adequate blood flow necessary for movement and facial expressions.

While the maxillary artery and the infraorbital artery also contribute to the vascularization of the face, their roles are more specialized. The maxillary artery mainly supplies the deep structures including the maxilla and muscles of mastication, and the infraorbital artery supplies areas under the orbit, particularly the inferior eyelid and the upper lip but not exclusively the facial muscles. The carotid artery distributes blood throughout the neck and head but is not a direct source for specific facial muscle supply. Thus, the facial artery's targeted delivery of blood to facial muscles makes it the correct answer for this question.