Biceps brachii vs Deltoid
| 속성 | Biceps brachii | Deltoid |
|---|---|---|
| 라틴어 명칭 | Musculus biceps brachii | Musculus deltoideus |
| 유형 | Muscle | Muscle |
| 신체 계통 | Muscular | Muscular |
| 신체 부위 | Upper Arm | Shoulder |
| 기능 | Primary supinator of the forearm and powerful flexor of the elbow. Also assists in shoulder flexion. The long head assists in shoulder joint stabilization. | The primary abductor of the shoulder joint. The anterior fibers flex and medially rotate the arm. The posterior fibers extend and laterally rotate the arm. Gives the shoulder its rounded … |
| 임상적 의의 | Biceps tendon ruptures cause a visible bulge (Popeye deformity). Bicipital tendinitis causes anterior shoulder pain. The biceps reflex tests the C5-C6 nerve roots. | Deltoid paralysis from axillary nerve injury prevents arm abduction. The deltoid is a common site for intramuscular injections. Rotator cuff tears may cause compensatory deltoid overuse. |
| FMA ID | 37670 | 32521 |
Full structure pages
Biceps brachii
Musculus biceps brachii
A two-headed muscle of the anterior compartment of the upper arm, the biceps brachii is the primary supinator of the forearm and a powerful flexor of the elbow, also assisting in flexion of the shoulder. …