Which of the following muscles are supplied by the superior labial artery?

The superior labial artery, a branch of the facial artery, supplies blood to several muscles in the face. These include:

1. Orbicularis Oris: This muscle encircles the mouth and is used to close the lips or pucker them, as in kissing.

2. Quadratus Labii Superioris: Also known as the levator labii superioris, this muscle helps to elevate the upper lip.

3. Nasalis: This muscle is responsible for compressing the nasal cartilage.

4. Caninus: Also known as the levator anguli oris, this muscle helps to raise the angle of the mouth.

5. Triangularis: Also known as the depressor anguli oris, this muscle helps to lower the angle of the mouth.

Remember, the superior labial artery also supplies blood to other facial structures, such as the nose and upper lip.