Facial muscles

• The orbicularis oris is the muscle that surrounds the mouth.
• The buccinator is the muscle responsible for blowing out cheeks, whistling, and sucking through a straw.
• The masseter is the muscle used to chew food.
• The temporalis is the muscle involved in biting down on hard foods.
• The zygomaticus major elevates the corner of the lips when smiling.
• The risorius pulls the angle of the mouth upward to form a smile.
• The temporalis is the muscle involved in biting and clenching teeth.
• The temporalis is the muscle involved in biting and grinding teeth.
• The pterygoids are the muscles that move the jaw sideways.
• The risorius is the muscle that draws back the angle of the mouth during laughter.
• The mentalis raises the lower lip.
• The depressor anguli oris lowers the corners of the mouth.
• The orbicularis oris closes the lips tightly around objects being sucked into the mouth.
• The levator labii superioris alaeque nasi lifts the upper lip and nostril wing.