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skeletal muscles
| Term | Definition |
|---|---|
| Sternocleidomastoid | Anterior - Rotates and laterally flexes neck |
| Trapezius | Anterior/posterior - draws head back and to the side; rotates scapula |
| Deltoid | Anterior/posterior - raises and rotates arms |
| Rectus femoris | Anterior - Extends leg and assists flexion of thigh |
| Sartorius | Anterior - Flexes and rotates the thigh and leg |
| Tibialis anterior | Anterior - Dorsiflexes foot and increases the arch in the beginning process of walking |
| Pectoralis major | Anterior - flexes, adducts, and rotates arm |
| Biceps brachii | Anterior - flexes arm and forearm and supinates forearm |
| External oblique | Anterior - Contracts abdomen and viscera (internal organs) |
| Rectus abdominis | Anterior - compresses or flattens abdomen |
| Gastrocnemius | Anterior/posterior - Plantar flexes foot and flexes knee |
| Soleus | Anterior - plantar flexes foot |
| Triceps | Posterior- extends forearm |
| Latissimus dorsi | Posterior - adducts, extends, and rotates arm; used during swimming |
| Gluteus medius | Posterior - abducts and rotates thigh |
| Gluteus maximus | Posterior - extends and rotates thighs |
| Biceps femoris | Posterior - Flexes knee and rotates it outward |
| Semitendinosus | Posterior - Flexes and rotates leg; extends thigh |
| Semimembranosus | Posterior- flexes and rotates leg; extends thigh |
| Achilles tendon | Posterior - Plantar(sole of the foot) flexion and extension of ankle |