Anatomy of Forearm Muscles

Wrist and Finger Movements

• Flexor Carpi Radialis, Flexor Carpi Ulnaris, Palmaris Longus, and Flexor Digitorum Superficialis are involved in flexing the wrist.
• Flexor Digitorum Profundus and Flexor Pollicis Longus are involved in flexing the wrist and fingers.
• Extensor Carpi Radialis Brevis, Extensor Carpi Radialis Longus, Extensor Carpi Ulnaris, Extensor Digitorum, and Extensor Pollicis Longus are involved in extending the wrist.
• Extensor Pollicis Brevis and Extensor Indicis are involved in extending the thumb and index finger.

Elbow Movements

• Brachialis, Brachioradialis, and Triceps Brachii are involved in flexing and extending the elbow.
• Anconeus assists in extending the elbow.

Forearm and Supination

• Pronator Teres and Supinator are involved in pronation and supination of the forearm.
• Biceps Brachii is involved in supination and flexion of the elbow.

Shoulder Movements

• Deltoid, Supraspinatus, Teres Minor, and Infraspinatrus are involved in shoulder movements such as abduction, adduction, flexion, and extension.
• Latissimus Dorsi, Coracobrachialis, and Teres Major are involved in shoulder movements such as adduction and flexion.
• Pectoralis Major is involved in shoulder movements such as flexion, extension, and adduction.

Scapula and Shoulder Girdle

• Trapezius, Rhomboid, and Levator Scapulae are involved in scapula movements such as elevation, depression, upward rotation, and downward rotation.
• Pectoralis Minor is involved in scapula movements such as depression and downward rotation.

Hip and Thigh Movements

• Gluteus Maximus, Gluteus Medius, and Gluteus Minimus are involved in hip movements such as extension, abduction, and internal rotation.
• Tensor Fasciae Latae is involved in hip movements such as abduction and internal rotation.
• Iliacus and Psoas are involved in hip movements such as flexion and external rotation.

Knee Movements

• Rectus Femoris, Vastus Lateralis, Vastus Intermedius, and Vastus Medialis are involved in knee movements such as extension.
• Hamstring muscles (Biceps Femoris, Semitendinosus, and Semimembranosus) are involved in knee movements such as flexion and internal rotation.
• Popliteus is involved in knee movements such as internal rotation.

Ankle and Foot Movements

• Peroneus Longus, Peroneus Brevis, and Peroneus Tertius are involved in ankle movements such as eversion and plantarflexion.
• Gastrocnemius and Soleus are involved in ankle movements such as plantarflexion.
• Tibialis Anterior and Tibialis Posterior are involved in ankle movements such as dorsiflexion and inversion.