click below
click below
Normal Size Small Size show me how
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 |