| A | B |
|---|
| Biceps brachii | upper arm, flexes elbow, supinates forearm |
| Triceps brachii | upper arm, extends elbow |
| Flexor digitorum | forearm, flexes wrist and fingers |
| Extensor digitorum | forearm, extends fingers and wrist |
| Sternocleidomastoid | neck, flexes and rotates head |
| Temporalis | head, closes jaw (synergist) |
| Buccinator | head, flattens cheeks (whistling) |
| Masseter | head, closes mouth (prime mover) |
| Frontalis | head, raises eyebrows, wrinkles forehead |
| Gracilis | anterior thigh, adduct thigh |
| Satorius | anterior thigh, flexes thigh |
| Rectus femoris | anterior thigh, part of quadriceps, extends knee and flexes hip |
| Gastrocnemius | lower leg, plantar flexes foot, flexes knee |
| Gluteus maximus | posterior leg, extends hip |
| Biceps femoris | posterior thigh, flexes knee and extends hip |
| External obliques | abdomen, flex vertebral column, rotate and bend trunk |
| Rectus abdominis | abdomen, flexes vertebral column, compresses abdomen (labor) |
| Transversus abdominis | abdomen, compresses abdomen (synergist) |
| Trapezius | posterior trunk, extend head, elevates, depresses, and stabilizes scapula |
| Deltoid | posterior trunk, arm abduction |
