6.1 Muscles and Joints of the Head, Face, Arms, Hands, Legs, and Feet

Why this anatomy is on the New Jersey theory paper

Quick Answer: A skeletal muscle has an origin (more stationary attachment), an insertion (more movable attachment), and a belly (the fleshy middle). Exam-typical facial massage travels from insertion toward origin. N.J.A.C. 13:28-1.1(a)1v lets a New Jersey cosmetologist-hairstylist massage, cleanse, or stimulate the face, neck, or upper chest and upper back by hand or with mechanical or electrical appliances. Hand and foot work belong to manicuring and pedicuring under N.J.A.C. 13:28-1.1(a)1vii. This is beautification, not massage therapy and not medical treatment.

The NIC New Jersey Cosmetologist-Hair Stylist Candidate Information Bulletin places muscles and joints and their functions for the head and face, arms and hands, and legs and feet in Domain 1.B.3 under Scientific Concepts. Domain 1 is 30 of 110 weighted items. You are not sitting a physical-therapy board. You are learning the structures under a facial, a shampoo, a shave, a manicure, and a pedicure so you do not grind a joint, crank a neck over the shampoo bowl, or advertise a medical result.

New Jersey's 1,200-hour table in N.J.A.C. 13:28-6.29 is the practical reason these names matter: 78 hours of facials and massage, 60 hours of shampooing, 50 hours of hair and scalp treatments, 135 hours of manicuring and pedicure, and 81 hours of shaving. Those hours are wasted if you cannot tell the masseter from the platysma, or the radius from the ulna, when a theory item describes a service.

Origin, insertion, belly — and two direction rules

Facial and neck modeling in NIC-style teaching runs from insertion toward origin. Working the other way, session after session, tugs the movable end off its anchor and works against the tone you are trying to support. That rule is textbook convention, not a sentence in N.J.A.C. 13:28 — but it is the direction theory items expect for muscle massage on the face.

Limb circulation strokes during a manicure or pedicure add a second rule: effleurage toward the heart. Veins and lymph vessels return fluid in that direction. The two rules answer different jobs. Attachment direction protects muscle tone on the face. Heartward direction supports venous and lymphatic return on an arm or leg. Neither rule authorizes treating vascular disease. That caution belongs with circulation in the next section; the joint-and-muscle point here is simpler: do not wrench a hinge joint, and do not use a cosmetic stroke as an excuse to work like a clinician.

Muscle tissue in the salon is stimulated by manual massage, by mechanical or electrical appliances that stay inside the Class I cosmetic lane (detailed in the facial-electrical chapter), and by heat and moist heat from towels or a steamer. Chemicals in a cream or mask can create a mild surface effect. None of those methods is a license to work below the stratum corneum and affect living epidermal cells — N.J.A.C. 13:28-2.15(b)2 forbids that, even when 13:28-1.1(a)1v allows cosmetic massage of the listed regions.

New Jersey's massage wall (read this before you memorize names)

N.J.A.C. 13:28-1.1(a)1v is the sentence that governs facial-style massage for a cosmetologist-hairstylist: massaging, cleansing, or stimulating the face, neck, or upper chest and upper back, with or without cosmetic preparations, either by hand, mechanical, or electrical appliances. That is the full geographic grant. It does not say lower back, abdomen, full thigh, or medical trigger-point work.

Related authorizations so you do not mix clauses:

• N.J.A.C. 13:28-1.1(a)1i — shaving or trimming the beard, mustache, or other facial hair. You stretch skin over the mandible, masseter region, platysma, and neck. You do not become a surgeon.
• N.J.A.C. 13:28-1.1(a)1ii — shampooing and hair services. Scalp and neck comfort during a shampoo live here, not in a claim that you are a massage therapist.
• N.J.A.C. 13:28-1.1(a)1vii — manicuring the fingernails, nail-sculpturing, or pedicuring the toenails. Hand, forearm, foot, and lower-leg cosmetic massage is part of those services, not a back-door bodywork license.

A shop that wants to sell massage outside that statutory definition must use a person authorized to practice massage therapy. Stretching this chapter into Swedish full-body work is how candidates fail both the law items and the science items.

Bones and joints of the skull and face

You need landmarks you can feel while you drape, shave, or perform a facial — not a radiology report.

Exam-typical osteology of the cranium counts eight bones: one frontal, two parietal, one occipital, two temporal, one sphenoid, and one ethmoid. The occipital bone is the shampoo-bowl contact at the base of the skull. The temporal bones sit around the ears and carry the mastoid process, the insertion of the sternocleidomastoid. The frontal bone is the forehead you cleanse and massage.

The face is commonly taught as fourteen bones. The service-critical set is the mandible (lower jaw — the only freely movable bone of the skull), the maxillae (upper jaw), the zygomatic bones (cheeks; origin territory for the masseter), and the nasal bones. Cranial sutures are immovable joints. Do not grind across them as if they were a wrist.

The temporomandibular joint (TMJ) in front of the ear is a hinge-and-glide joint. A clenching client often presents a bulky masseter at the angle of the jaw. You may ease that tissue during a cosmetic facial. You do not diagnose TMJ disorder, fit a night guard, or promise to cure pain.

Muscles of the scalp, face, and neck

Epicranius (occipitofrontalis). Broad scalp muscle with two bellies joined by the epicranial aponeurosis (galea). The frontalis takes origin on that aponeurosis and inserts into the skin of the eyebrows; it raises the brows and wrinkles the forehead horizontally. The occipitalis originates on the occipital bone and inserts into the same aponeurosis; it draws the scalp backward. A shampoo or scalp treatment that never reaches the occipital belly misses the back of the scalp. A facial that skips the frontalis misses the forehead the client can see in the mirror.

Orbicularis oculi. Ring (sphincter) muscle around the eye socket. Origin is the bony margin of the orbit; insertion is in the tissue of the eyelid. It closes the eyelid and is the muscle of blinking. Eye-area facial work stays light. You are not operating on the lid.

Orbicularis oris. Ring muscle around the mouth. Fibers insert in the lips. It compresses, contracts, and puckers the lips. Lip-area cleansing, shaving around the mouth, and makeup all sit over this muscle.

Masseter. Chewing muscle. Origin: zygomatic arch. Insertion: ramus and angle of the mandible. Action: closes the jaw. Together with the temporalis, it is the mastication pair. During a shave, remember that the facial artery crosses the mandible near the anterior border of the masseter — a pulse point you do not crush with a blade or a heavy thumb.

Platysma. Broad sheet. Origin: fascia covering the upper chest and shoulder (pectoral and deltoid fascia). Insertion: mandible and skin of the lower face. Action: depresses the jaw and lower lip. New Jersey facial scope includes the neck and upper chest, so platysma is in-bounds. It is not a reason to undrape the abdomen.

Sternocleidomastoid (SCM). Origin: sternum (manubrium) and medial clavicle. Insertion: mastoid process of the temporal bone. Action: rotates the head to the opposite side and assists nodding. A shampoo chair that hyperextends the neck parks this muscle in a stretch. A neck shave works along its anterior border. Stay cosmetic; do not claim to treat a medical neck injury.

The trapezius covers the back of the neck and the upper back — the same upper back named in N.J.A.C. 13:28-1.1(a)1v. Light stimulation there during a facial that includes the décolleté matches the regulation. Lower-back bodywork does not.

Bones, joints, and muscles of the arm and hand

Shoulder is a ball-and-socket joint. Elbow is a hinge. The wrist (radiocarpal) is a condyloid (ellipsoid) joint. Finger joints are hinges. The thumb carpometacarpal joint is a saddle, which is why the thumb can oppose the fingers while you hold a polish brush or a client's fingertip.

Deltoid. Triangular cap of the shoulder. Origin: clavicle, acromion, and spine of the scapula. Insertion: deltoid tuberosity of the humerus. Action: abducts the arm (lifts it away from the body). You see it when the client raises the arm onto the table. You do not deep-tissue a deltoid injury.

Biceps brachii. Anterior upper arm. Origin: scapula (two heads). Insertion: radius. Action: flexes the elbow and assists supination (palm up). Triceps brachii. Posterior upper arm. Origin: scapula and humerus. Insertion: olecranon of the ulna. Action: extends the elbow. If the forearm will not rest comfortably, add a towel prop. That is client comfort, not a diagnosis.

Flexors of the forearm occupy the anterior (palm) side; they flex the wrist and fingers. Many take origin near the medial epicondyle of the humerus and insert on carpals, metacarpals, or phalanges. Extensors occupy the posterior (back-of-hand) side; they extend the wrist and fingers, with origin near the lateral epicondyle. Abductors of the fingers spread them; adductors draw them together. Those four groups are the manicure-massage map. Use the cream or oil your procedure allows. Send the circulatory portion of the stroke toward the heart. Do not claim to treat carpal tunnel as a disease.

Bones, joints, and muscles of the leg and foot

Hip is ball-and-socket. Knee and ankle are hinges (the ankle mortise is tibia, fibula, and talus). Toes are hinges. Pedicure massage stays with the foot and lower leg as part of pedicuring, with strokes toward the heart. Skip dilated, ropy varicose veins. Do not sell reflexology as organ-disease treatment — N.J.A.C. 13:28-2.15(b)6 bars services that claim to cure or remedy disease or illness.

Calf musculature, including the gastrocnemius, plantarflexes the foot (points it down). The tibialis anterior on the shin dorsiflexes the foot (lifts the dorsum). Those names appear on theory items. They do not turn a pedicure into sports-medicine stripping of the calf.

How this lands on a New Jersey service

Facial (13:28-1.1(a)1v). Insertion-to-origin modeling over frontalis, orbicularis oculi, orbicularis oris, masseter, platysma, SCM, and light upper-chest and upper-back work. Mechanical or electrical appliances stay cosmetic; if the device is a medical device, N.J.A.C. 13:28-2.15(b)8 limits you to Class I FDA devices used as the manufacturer directs.

Shampoo and scalp (13:28-1.1(a)1ii). Occipitalis, frontalis, SCM, upper trapezius. Support the neck. Do not hang the head in extension over a poorly set bowl.

Manicure (13:28-1.1(a)1vii). Flexors, extensors, abductors, adductors; carpals and phalanges. Circulation strokes toward the heart.

Pedicure (13:28-1.1(a)1vii). Foot and lower-leg joints; same circulatory direction; never over varicosities.

Shaving (13:28-1.1(a)1i). Mandible, masseter region, platysma, SCM. Taut skin over bone. You are stretching cosmetic tissue, not performing surgery.

Exam-style traps

• Trap: A cosmetologist-hairstylist license equals a massage-therapy license. It does not. Geographic grant is face, neck, upper chest, and upper back, plus cosmetic limb work that is part of nails services.
• Trap: Facial massage runs from origin toward insertion because you start on bone. Exam-typical muscle modeling is insertion toward origin.
• Trap: The radius is the little-finger bone. Radius is thumb-side; ulna is little-finger side.
• Trap: The tibia is the thin outer bone. Tibia is the large inner shin; fibula is the thin outer bone.
• Trap: Deep work below the stratum corneum is fine if the client asked for a facial. N.J.A.C. 13:28-2.15(b)2 says otherwise.