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Muscles Practical
Action of Muscles
| Term | Definition |
|---|---|
| Satorius Action | Flexes, abducts, and laterally rotates |
| Gracilis Action | Adducts, flexes, and medially rotates |
| Tensor Fasciae Latae Action | Flexes, abducts, and laterally rotates |
| Biceps Femoris Action | Extends, flexes, and laterally rotates |
| Rectus Femoris Insertions | Tibial Tuberosity and patella |
| Rectus Femoris Action | Extends and flexes |
| Vastus Medialis Insertion | Tibial Tuberosity |
| Vastus Medialis Action | Extends and stabilizes |
| Vastus Intermedius Insertion | Tibial Tuberosity and patella |
| Vastus Intermedius Action | Extends |
| Vastus Lateralis Insertion | Tibial Tuberosity and patella |
| Vastus Lateralis Action | Extends |
| Adductor Femoris Action | Adducts |
| Adductor Longus Action | Adducts, flexes, and rotates |
| Semimembranosus Action | Flexes and extends |
| Semitendinosus Action | Flexes and extends |
| Gluteus Maximus Insertion | Gluteal Tuberosity and iliotibial tract |
| Gluteus Maximus Action | Extends, abducts, and laterally rotates |
| Gluteus Medius Insertion | Greater Trochanter |
| Gluteus Medius Action | Abduction and medially rotating |
| Gastrocnemius Insertion | Posterior surface of calcaneus |
| Gastrocnemius Action | flexes and plantar flexion |
| Soleus Insertion | Posterior Surface of Calcaneus |
| Soleus Action | Plantar Flexion |
| Peroneus Longus Action | Plantar Flexion and eversion |
| Flexor Digitorum Longus Insertion | Distal Phalange of 2nd and 5th toes |
| Flexor Digitorum Longus Action | Flexes |
| Tibialis Anterior Insertion | Medial Cuneiform and base of 1st metatarsal |
| Extensor Digitorum Longus Instertion | Middle and Distal phalanges of 2nd and 5th toes |
| Tibialis Anterior Action | Dorsiflexion and eversion |
| Extensor Digitorum Longus Action | Dorsiflexion and extension |
| Biceps Brachii Insertion | Radial Tuberosity |
| Biceps Brachii Action | Flexes and pronation and supination rotation |
| Brachialis Insertion | Coronoid Process of Ulna |
| Brachialis Action | Flexes |
| Triceps Brachii Insertion | Olecranon Process of Ulna |
| Triceps Brachii Action | Extension |
| Palmaris Longus Origin | Medial Epicondyle |
| Palmaris Longus Action | Assists with flexion in hand |
| Flexor Carpi Ulnaris Origin | Medial Epicondyle |
| Flexor Carpi Ulnaris Action | Flexes |
| Flexor Carpi Radialus Origin | Medial Epicondyle |
| Flexor Carpi Radialus Action | Flexion |
| Brachioradialis Origin | Lateral Humerus |
| Brachioradialis Action | Flexes, extends, and supination and pronation |
| Spinotrapezius Action | Retracts and elevates |
| Acromiotrapezius Action | Rotates |
| Clavotrapezius Action | Retracts |
| Spinodeltoid Action | Extends |
| Acromiodeltoid Action | Abducts |
| Clavodeltoid Action | Flexes |
| Levatator Scapulae Ventralis Action | Elevates and rotates |
| Latissumus Dorsi Action | Adducts and extends |
| Rhomboideus Origin | Vertebrae of thoracic cavity |
| Rhomboideus Insertion | Medial Border of Scapula |
| Rhomboideus Action | Retracts |
| Infraspinatus Action | Stabilizes joint |
| Supraspinatus Action | Stabilizes joint |
| Splenius Action | Extends and stabilizes joint between atlas and axis |
| External Oblique Action | Flexes |
| Internal Oblique Action | Flexes |
| Transverse Abdominis Action | Compresses |
| Rectus Abdominis Action | Flexes |
| Pectoralis Major Origin | Sternum and clavicle |
| Pectoralis Major Insertion | Bicipital groove |
| Pectoralis Major Action | Flexes and adducts |
| Pectoralis Minor Origin | Ribs |
| Pectoralis Minor Insertion | Coracoid Process of scapula |
| Pectoralis Minor Action | Protracts |
| Serratus Ventralis Action | Pulls and protracts |
| Scaleness Action | Elevates, flexes, and slightly rotates |
| Masseter Origin | Zygomatic Arch |
| Masseter Action | Chewing and elevates |
| Masseter Insertion | Mandible |
| Mylohyoid Action | Elevates |
| Digastric Insertion | Hyoid bone |
| Digastric Action | Opens mouth and elevates |
| Sternohyoid Insertion | Hyoid Bone |
| Sternohyoid Origin | Sternum |
| Sternohyoid Action | Elevates and retracts |
| Sternocleidomastoid Origin | Sternum and clavicle |
| Sternocleidomastoid Insertion | Mastoid Process |
| Sternocleidomastoid Action | flexes and rotates |