Deltoid muscle

MUSCLE ANATOMY DELTOIDES

SHORT DESCRIPTION

• Shaped hollow half-cone with the base situated superiorly and vertex at the bottom.
• It is the muscle that forms the shoulder stump.

OCUPA

• side of the shoulder.

ORIGIN

• 1/3 side of the front edge of the clavicle.
• Vertex and lateral edge of the acromion.
• lower side of the rear edge of the spine of the scapula.

INSERTION

• lateral aspect of the middle third of the humerus, the deltoid tuberosity in or V deltoid.

INNERVATION: Nerve Circumflex

FUNCTION

• Flexion - extension.
• Abduction - adduction.
• external - internal rotation.

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