1. MAJOR SKELETAL MUSCLES AND MUSCLE GROUPS

2. MUSCLES OF THE HEAD AND NECK
Occipito(frontalis): frown, surprise, wrinkles in forehead
Orbicularis oculi: wink “closes eye”
Orbicularis oris: pucker “compresses lips”
Temoralis and masseter: open and close jaw
Sternocleidomastoid: bow (flexes and rotates head)
Trapezius: moves the shoulder and extends the head (posture)
Nasalis: flare nares

3. MUSCLES OF UPPER EXTREMITIES
Pectoralis major: flex and abduct upper arm
Latissimus dorsi: extend upper arm
Deltoid: abduct upper arm
Biceps brachii: flex lower arm
Triceps brachii: extend lower arm

4. MUSCLES OF THE TRUNK Internal and external obliques: depress ribs
Transverse and rectus abdominis: compresses abdomen “6 pack”

5. MUSCLES OF THE LOWER EXTREMITIES
Sartorius: flexes and rotates thigh and leg
Gluteus maximus: extends femur and rotates it
Gluteus medius: abducts and rotates thigh
Quadriceps group: extend
Hamstring group:
Gastrocnemius: flexes foot and extends lower leg
Tibialis anterior: dorsifexes foot
Rectus femoris: flexes thigh and extends leg