Deltoid

Musculus deltoideus

A thick, triangular muscle covering the shoulder joint. It originates from the lateral third of the clavicle, acromion, and spine of the scapula, and inserts on the deltoid tuberosity of the humerus. Innervated by the axillary nerve (C5, C6).

Tipo Muscle
Sistema corporal Muscular
Región corporal Shoulder
Nombre latino Musculus deltoideus
FMA ID 32521

Función

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 contour.

Significado clínico

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.

Preguntas frecuentes

What is the Deltoid?
A thick, triangular muscle covering the shoulder joint. It originates from the lateral third of the clavicle, acromion, and spine of the scapula, and inserts on the deltoid tuberosity of the humerus. Innervated by the axillary nerve (C5, C6).
What is the function of the Deltoid?
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 contour.
What body system is the Deltoid part of?
The Deltoid is part of the Muscular.
What conditions affect the Deltoid?
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.
Where is the Deltoid located?
The Deltoid is located in the Shoulder region of the body.

Estructuras relacionadas

musculature muscle group tendon sheath synovial tendon sheath skeletal system set of all bones and joints orbital septum septum orbitale iliopsoas Hyrtl's muscle myocardium cardiac muscle conducting system of heart cardiac conducting system long head of biceps brachii capus longum of biceps brachii

Aviso médico

Este contenido es solo para fines educativos e informativos. No pretende ser un sustituto del consejo médico profesional, diagnóstico o tratamiento. Siempre busque el consejo de su médico u otro proveedor de salud calificado ante cualquier pregunta que pueda tener sobre una condición médica. Nunca ignore el consejo médico profesional ni demore en buscarlo debido a algo que haya leído en este sitio web.