The muscle you are referring to is the subscapularis muscle. It originates on the subscapular fossa of the scapula and inserts on the lesser tubercle of the humerus. It is responsible for medial rotation of the shoulder joint.
The brachialis muscle originates from the front of the humerus bone in the upper arm. It lies deep to the biceps brachii muscle and is responsible for flexing the arm at the elbow joint.
The quadriceps femoris is the primary muscle group responsible for extending the knee, while the iliopsoas is a major muscle that flexes the thigh at the hip joint.
The supraspinatus muscle has an attachment on the superior facet of the greater tubercle of the humerus. It plays a key role in initiating shoulder abduction and stabilizing the shoulder joint.
The main antagonist of medial rotation of the humerus is the infraspinatus muscle, one of the rotator cuff muscles. It works in opposition to the muscles that perform medial rotation, such as the subscapularis.
The biceps brachii muscle.
This muscle flexes and adducts the humerus. It is also a synergist of the pectoralis major
The humerus is one of the bones in 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 main muscle that flexes the forearm is the biceps brachii.
it flexes and rotates the head
sternocleidomastoid
i THE ILIOPSOAS
quadricep
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
cranial tibial muscles
the sternocleidomastoid, rectus muscle, longus muscle, and scalene muscles