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Muscles (Esthetics)
Functions of basic muscles important in Esthetics
Question | Answer |
---|---|
Occipitalis | Back of the epicranius; muscle that draws the scalp backward. |
Frontalis | Anterior (front) portion of the epicranius; muscle of the scalp that raises the eyebrows, draws the scalp forward, and causes wrinkles across the forehead. |
Aponeurosis | Tendon that connects the occipitalis and the frontalis. |
Auricularis superior | Muscle above the ear that draws the ear upward. |
Auricularis anterior | Muscle in fron of the ear that draws the ear forward. |
Auricularis posterior | Muscle behind the ear that draws the ear backward. |
Temporalis | Muscle of mastication located above the auricularis superior. |
Platysma | Broad muscle extending from the chest and shoulder muscles to the side of the chin; responsible for lowering the lower jaw and lip. |
Sternocleidomastoideus | Muscle of the neck that lowers and rotates the head. |
Corrugator | Muscle located beneath the frontalis and orbicularis oculi that draws the eyebrow down and wrinkles the forehead vertically. |
Orbicularis Oculi | Ring muscle of the eye socket; closes the eyes. |
Procerus | Covers the bridge of the nose, lowers the eyebrows and causes wrinkles across the bridge of the nose. |
Buccinator | Thin, flat muscle of the cheek between the upper and lower jaw that compresses the cheeks and expels air between the lips. |
Depressor labii inferioris | (aka quadratus labii inferioris) A muscle surrounding the lower lip that depresses the lower lip and draws it to one side. |
Levetor anguli oris | (aka caninus) A muscle that raises the angle of the mouth and draws it inward. |
Levator labii superioris | (aka quadratus labii superioris) A muscle surrounding the upper lip that elevates the upper lip and dilates the nostrils, as in expressing distaste. |
Mentalis | A muscle that elevates the lower lip and raises and wrinkles the skin of the chin. |
Biceps | Muscle producing the contour of the front and inner side of the upper arm; they lift the forearm, flex the elbows, and turn the palms outward. |
Deltoid | Large, triangular muscle covering the shoulder joint that allows the arm to extend outward and to the side of the body. |
Triceps | Large muscle that covers the entire back of the upper arm and extends the forearm. |
Extensors | Muscles that straighten the wrist, hand, and fingers to form a straight line. |
Flexors | Extensor muscles of the wrist, involved in bending the wrist. |
Pronator | Muscles that turn the hand inward so that the palm faces downward. |
Supinator | Muscle that rotates the radius outward and the palm upward. |
Masseter | A thick, somewhat quadrilateral muscle, consisting of two portions, superficial and deep. One of the muscles of mastication. |
Orbicularis oris | Flat band around the upper and lower lips that compresses, contracts, puckers, and wrinkles the lips. |
Risorius | Muscle that draws the corner of the mouth out and back, as in grinning. |
Tringularis | A muscle extending alongside the chin that pulls down the corner of the mouth. |
Zygomaticus major and minor | Muscles extending from the zygomatic bone to the angle of the mouth that elevate the lip, as in laughing. |
Latissimus dorsi | Broad, flat muscle covering the back of the neck and upper and middle region of the back, controlling the shoulder blale and the swinging movements of the arm. |
Serratus anterior | Muscle of the chest that assists in breathing and in raising the arm. |
Trapezius | Muscle that covers the back of the neck and upper and middle region of the back; rotates and controls swinging movements of the arm. |
Pectoralis major | Muscles of the chest that assist the swinging movements of the arm. |