Both the supraspinatus and deltoid muscles are the main ones respnosible for abduction of the arm.
The supraspinatus is responsible for abducting the arm for the first 15 degrees, while the deltoid is responsible for abducting the arm after 15 degrees.
This muscle flexes and adducts the humerus. It is also a synergist of the pectoralis major
Abductor muscle - moves a limb away from the midlineAdductor muscle - moves a limb towards the midlineExtensor muscle - increase the angle at a joint - extends a limbFlexor muscle - decreases the angle at a joint - flexes a limbPronator muscle - turns a limb to face downwardsSupinator muscle - turns a limb to face upwardsRotator muscle - rotates a limbIn the human body, these are the responsible muscles.*Muscles which move the thigh and their action*Gluteus maximus - Extends and rotates thigh laterally.Adductor longus - Adducts, medially rotates and flexes the thighAdductor brevis - Adducts, laterally rotates and flexes the thighAdductor magnus - Adducts, flexes, laterally rotates and extends the thigh.Rectus femoris - Extends knee and flexes hipVastus lateralis - Extends kneeVastus medialis - Extends kneeVastus intermedius - Extends kneeSartorius - Flexes knee. Flexes hip and rotates femur laterallyBiceps femoris - Flexes leg and extends thighSemitendinosus - Flexes leg and extends thighSemimembranosus - Flexes leg and extends thigh
Extensor carpi ulnaris
subscapularis
Flexing the thigh, extending the leg, adducts leg
The humerus is one of the bones in your arm.
which shoulder muscle allows you to adduct your arm
The structure connecting the pectoral muscle to the humerus is the tendon of the pectoralis major muscle. This tendon attaches the muscle to the upper arm bone (humerus), allowing for movements like shoulder flexion, adduction, and medial rotation.
The pectorals major
latissimus dorsi
Name of the muscle is trapezious. It has an extensive origin from spines of verebral column.
It contributes to adduction, horizontal adduction, and flexion of the humerus, enabling the arm to swing forwards, and it is a synergist of the pectoralis minor.