- Platysma
- Origins: Fascia over the pectoral and deltoid muscles
- Insertion: Muscle and skin at the corners of the mouth
- Action: Pulls the corners of the mouth downward and depresses the lower lip
- Origins: Incisive fossa of the mandible
- Insertion: Skin of the chin
- Action: Protrudes the lower lip
- Origins: Maxilla and mandible
- Insertion: Borders around the mouth
- Action: Purses or closes the lips to help in speech and expressions
- Origins: Medial area of the superciliary arch of the frontal lobe
- Insertion: The skin of and around the eyebrow
- Action: Brings eyebrows closer together medialy and downward
- Origins: The area around the eye
- Insertion: Borders the eye
- Action: Blinking or closing the eyelids in order to protect the eye or generate expressions
- Origins: The tendinous sheet covering the skull (Galea aponeurotica)
- Insertion: Forehead skin
- Action: Raises the eyebrows, creating wrinkles on the forehead