Muscle Groups and Actions
Order by
58 terms
Latin | English |
|---|---|
| Trapezius |  rotation of scapula, elevation/depression of scapula, pulls scapula medially |
| Deltoids | Abducts, extends, and flexes arm |
| Rhomboid major | Raises, adducts scapula |
| Rhomboid minor | Adducts, laterally rotates scapula |
| Pectoralis major | Flexes, adducts, and rotates arm medially |
| Pectoralis minor | Pulls scapula forward and downward/raises ribs |
| Serratus anterior | Pulls scapula anteriorly and downward |
| Erector Spinae Groups | Extends vertebral column, holds spine erect. |
| Abdominal Groups | Tenses abdominal wall and compresses abdominal contents, as well as flex vertebral column |
| Latissimus dorsi | Extends, adducts, and rotates the arm medially, or pulls shoulder downward and back |
| Quadratus lumborum | Flexes vertebral column laterally, extends lumbar vertebrae |
| Levator scapulae | Elevates scapula |
| Supraspinatus | Abducts the arm |
| Infraspinatus | Rotates arm laterally |
| Teres major | Extends, adducts, and rotates arm medially |
| Teres minor | Rotates arm laterally |
| Brachialis | Flexes forearm at elbow |
| Biceps Brachii | Flexes forearm at elbow and rotates arm laterally |
| Triceps Brachii | Extends forearm at elbow |
| Pronator teres | Rotates forearm medially |
| Flexor carpi ulnaris | Flexes wrist and adducts hand |
| Extensor carpi ulnaris | Extends wrist and adducts hand |
| Flexor digitorum | Flexes fingers and wrist |
| Lumbricals | Extends phalanges, flexes metacarpals/tarsals |
| Psoas major | Flexes thigh |
| Iliacus | Flexes thigh (2) |
| Quadriceps Femoris Group | Extends leg at knee |
| Hamstring Group | Flexes and rotates leg laterally, medially, flexes and extends thigh |
| Sartorius | Flexes leg and thigh, abducts and rotates thigh laterally |
| Gluteus maximus | Extends thigh at hip |
| Gluteus medius | Abducts and rotates thigh medially |
| Gluteus minimus | Abducts and rotates thigh medially (2) |
| Adductor magnus | Adducts, extends, and rotates thigh laterally |
| Adductor longus | Adducts, flexes, and rotates thigh laterally |
| Tibialis anterior | Dorsiflexion and inversion of foot |
| Tibialis posterior | Plantar flexion and inversion of foot |
| Peroneus longus | Plantar flexion of the foot |
| Peroneus brevis | Plantar flexion and eversion of the foot |
| Flexor digitorum longus | Plantar flexion and inversion of foot and flexion of four lateral toes |
| Gastrocnemius | Plantar flexion of the foot and flexion of leg at knee |
| Soleus | Plantar flexion of the foot (2) |
| Piriformis | Rotates thigh laterally |
| Orbicularis oculi | Closes eye in blinking |
| Nasalis | Compresses nasal cartilage |
| Zygomaticus major | Raises corner of mouth as when smiling |
| Zygomaticus minor | Pulls lip back, upward, and out, as when sad/frowning |
| Risorius | Retracts mouth to make a smile (insincere?) |
| Frontalis | Elevates eyebrows |
| Orbicularis oris | Closes lips, protrudes lips as for kissing |
| Depressor anguli oris | Causes frowning |
| Depressor labii inferioris | Depresses lower lip |
| Mentalis | Elevates lower lip - wrinkles chin |
| Platysma | Draws angle of mouth downwards as when pouting |
| Buccinator | Compresses cheeks inward as when blowing air |
| Galea aponeurotica | Don't know.... |
| Occipitalis | Don't know = = |
| Auricular muscles | Moves ears slightly |
| Sternocleidomastoid | Pulls head to one side, flexes neck or elevates sternum |
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