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KCCAP2muscle06
Anterior Muscles
| Name | Action |
|---|---|
| Sternocleidomastoid | Turns chin to opposite side, elevates (expands) thorax during forced inhalation. |
| Scalenes - Anterior, Middle | Elevation of ribs during forced inhalation or bending of neck toward side of contracting. |
| Sternohyoid | Depresses hyoid bone. |
| Pectoralis Major | Flexion and adduction of arm. |
| Pectoralis Minor | Draws scapula anteriorly and medially ( as in pointing the shoulder forward). |
| External Intercostals | Elevates and expands rib cage during inhalation, (located between ribs). |
| External Oblique | Compression of abdomen (forced exhalation, etc.), rotation and lateral flexion of "trunk". |
| Internal Oblique | Compression of abdomen (forced exhalation, etc.), rotation and lateral flexion of "trunk". |
| Rectus Abdominus | Compression of abdomen and flexion of "trunk". |
| Biceps Brachii | Flexion and supination of forearm. |
| Brachialis | Flexion of forearm. |
| Coracobrachialis | Flexion and adduction of arm. |
| Brachioradialis | Flexion of arm. |
| Flexor Carpi Radialis | Flexion and abduction of hand at wrist. |
| Flexor Digitorum | Flexion of phlanges, digits 2 - 5. |
| Flexor Carpi Ulnaris | Flexion and adduction of hand at wrist. |
| Extensor Digitorum | Extension of phlanges 2 -5. |
| Extensor Carpi Radialis | Extension and abduction of the wrist. |
| Extensor Carpi Ulnaris | Extension and adduction of hand at wrist. |
| Sartorius | Flexion of thigh and leg. |
| Rectus Femoris | Flexion of thigh and extension of leg. |
| Vastus Lateralis | Extension of leg. |
| Vastus Medialis | Extension of leg. |
| Vastus Intermedius | Extension of leg. |
| Gracilis | Adduction of thigh and flexion of leg. |
| Adductor Longus | Adduction of thigh. |
| Tibialis Anterior | Dorsiflexion and inversion of foot. |