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By protraction, I assume that you mean shifting (rotating) the shoulder girdle anteriorly, which involves moving the scalula away from the spine (such as is requires when reaching forward). This motion requires movement at the sternoclavicular, acromioclavicular, and coracoclavicular joints, and is performed by actions of the serratus anterior, pectoralis minor and pectoralis major.
The opposite movement, retraction, is backward movement of the shoulder girdle, and involves moving the scapula back toward the spine. Trapezius (middle and lower fibers), rhomboids and latissimus dorsiare responsible for retraction.
What else can I help you with?
What is the Prime mover to protract and hold the scapula against the thorax wall the boxer's muscle?
The prime mover for protracting and holding the scapula against the thorax wall in boxers is the serratus anterior muscle. This muscle is important for providing stability and support to the shoulder blade during punching movements. It is often referred to as the "boxer's muscle" due to its role in maintaining proper shoulder function during boxing activities.
What is the prime mover for scapular retraction?
Rhomboids Major and Minor are the primary muscles that Adduct the Scapula.
What is a fixation of a muscle?
The functions of a fixator muscle is the stabalizing of the orgin of the prime mover so that the prime mover can act more efficiently. Fixators steady the proximal end of a limb while movements occurs at the distal end. EX: The scapula is a freely movable bone that serves as the orgin for several muscles that move the arm. When the arm contracts the scapula must be held steady.
Prime mover muscles?
A prime mover is the muscle that has the most influence in one direction on the joint it acts on. For example the prime mover in extension of the forearm is the triceps.
Muscles that are responsible for producing a particular movement are called?
The primary movement is called the Prime mover or Agonist
Prime mover for shoulder flexion and adduction?
Do you mean flexion and (abd)uction?? If so, the prime mover would be the deltoid muscle with many smaller muscles assisting. If you are in fact meaning flexion and adduction, the prime mover would be the pectoralis major and the latissimus dorsi with many smaller muscles assisting.
What muscles is responsible for the movement of scapula depression?
The movement of the scapula is largely determined by the position of the shoulder girdle as a whole. As a "floating bone" the scapula is often at the mercy of the more fixed extremities and can be acted upon by several different muscles simultaneously. That being said, the prime mover responsible for scapular depression is the trapezius (specifically the lower fibers). Other muscles which act as stabilizers or synergists in scapular depression and eventual scapular protraction are the subscapularis, the serratus anterior and the lower fibers of latissimus dorsi.
Which muscles are prime movers in a crunch?
your rectus abdominis is the prime mover in a crunch exercise or spinal flexion
What is the name of muscles that do the same action as the prime mover and are recruited if needed?
quadriceps
What is the prime mover for shoulder internal rotation?
The prime mover for shoulder internal rotation is the subscapularis muscle, which is one of the four muscles that make up the rotator cuff. It originates on the subscapular fossa of the scapula and inserts on the lesser tubercle of the humerus. Contraction of the subscapularis muscle causes internal rotation of the shoulder joint.
When the forearm is extended at the elbow joint muscles acts as the prime mover?
biceps brachii
Examples of fixator muscle?
The functions of a fixator muscle is the stabalizing of the orgin of the prime mover so that the prime mover can act more efficiently. Fixators steady the proximal end of a limb while movements occurs at the distal end. EX: The scapula is a freely movable bone that serves as the orgin for several muscles that move the arm. When the arm contracts the scapula must be held steady.
