Muscles of the Mouth

Question 1

Buccinator

Answer 1

the thin, flat muscle of the cheek between the upper and lower jaw that compresses the cheeks and expels air between the lips, as in when blowing a whistle.

Question 2

Depressor anguli oris

Answer 2

AKA triangularis muscle, the muscle extending alongside the chin that pulls down the corners of the mouth.

Question 3

Depressor labii inferioris

Answer 3

AKA quadratus labii inferioris, a muscle surrounding the lower lip that depresses the it and draws the lower lip to one side.

Question 4

Levator anguli oris

Answer 4

AKA caninus, a muscle that raises the angle of the mouth and draws it inward.

Question 5

Levator labii superioris

Answer 5

AKA quadratus labii superioris, a muscle that elevates the lip and dilates the nostrils, as in expressing distaste.

Question 6

Mentalis

Answer 6

the muscle that elevates the lower lip and raises and wrinkles the skin of the chin.

Question 7

Orbibularis oris

Answer 7

the flat band around the upper and lower lips that compresses, contracts, puckers, and wrinkles the lips.

Question 8

Risorius

Answer 8

the muscle that draws the corner of the mouth out and back, as in grinning.

Question 9

Zygomaticus Major/Minor

Answer 9

muscles extending from the zygomatic bone to the angle of the mouth that elevates the lip, as in laughing.