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The major muscles involved in horizontal adduction or flexion is the anterior deltoid fibres, pectoralis major and minor. Bicep complex(bbicep brachii, brachioradialis and forearm flexor) comes into action as synergists, if the leverage is long.The antagonists of horizontal flexion is posterior deltoid fibres,teres major, minor, lats and the associated rotator cuff muscle(infraspinatus)
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What muscles cause horizontal adduction of the shoulder?
There are four muscles used for horizontal adduction of the shoulder. These muscles are the pectorals major, middle deltoid, latissimus dorsi, and coracobrachilis.
What is the cause of chest and left shoulder pain?
The cause of the chest and the left shoulder pain may be as a result of the problems of the nerves, ribs, muscles, esophagus and lungs.
Why does your right shoulder hurt like some hit you there?
cause they are muscles,wines and sensitive parts .
What does the scapula protect in the body?
Scapula is the scientific term for shoulder blade. It provides a foundation for the attachments of the muscles that move the arm.There are many functions of the scapula. It forms part of the shoulder girdle and many (16) muscles are associated with it.The actions that the muscles have on it include: elevation (shrugging), depression (slumping), abduction, adduction, rotation, and tipping.The scapula omo (shoulder blade) is the bone which connects the humerous (arm bone) to the clavicle (collar bone) Movements of the scapula are brought about by scapular muscles: Elevation, Depression, Protraction, Retraction, Lateral rotation, Medial rotation, Upward Rotation, Downward Rotation, Anterior Tipping, and Posterior Tipping
What is abductor muscle?
Abductor muscles are the muscles which cause abduction. prime example being lateral head of the shoulder abducts your arms to the side of your body. similarly you have the muscles in your lower body which abducts your legs to the sides.
Where is bursa found near the shoulder area?
Bursitis is a condition in which there is an inflammation of the bursa, which is a sac that is located between muscles or tendons of the shoulder. A cause of shoulder bursitis can be overuse of the shoulder joint. This condition can cause pain.
What could be the cause of pain in your upper back that radiates up your neck and around your scapula and also pain in the right shoulder that pops with certain movements?
One view: It may be the suboccipital pain. One view: I was told mine was a build up of uric acid around my muscles and joints. One view: There are a lot of muscles behind and around your shoulder blades. There are also muscles between your shoulder blade (scapula) and your spine that can be in contraction (spasm.) Your "lat" muscles can pull on your shoulder, too. And your chest muscles may be tight and pulling on the muscles of your back. From the way you describe the "popping" it sounds like you have some muscles that are a little "too tight." My first choice for releasing or relaxing these muscles is massage--massage can work the quickest. Stretching the short front muscles in your chest and strengthening the muscles in your back can also help. Also stretch the fronts of your arms. When you stretch, stretch thoughtfully and gently.
How do you stop shoulder ache?
try every night to place it in a different place ... as you shoulder can become more ache for having it in the same place ... if continues you should go to see someone who could help
What 4 muscles are used to prevent movement of a broken clavicle?
There are actually more than 4 muscles that should be immobilized. When you move your shoulders you move your clavicle. The muscles that causes movement at the shoulder joint should be immobilized. This includes the prime movers, as well as the assistant movers. The following muscles should be immobile. The subclavius which moves and depresses the clavicle as well as helps stabilize the pectoral girdle. The pectoralis minorabduct the scapula and rotates it downward, lowering your shoulders. The serratus anterior abducts the scapula and cause it to rotate upward, shrugging your shoulders. The trapezius stabilizes the scapula as well as move it, and helps extend head. The levator scapulae elevates the scapula and rotates it downward. The rhomboid majorelevates, adducts, rotates downward, and stabilizes the scapula. The Rhomboid minor does the same thing as the Rhomboid major. The pectoralis major adducts and medially rotates the arm at the shoulder joint; flexes arm at the clavicular head and extends the arm to the side of the trunk at the sternocostal head. The deltoid abducts the arm at the shoulder joint; flex and medially rotates the arm at shoulder joint; and extend and laterally rotates the arm at shoulder joint. The subscapularis medially rotates the arm at shoulder joint. The supraspinatus assists the deltoid muscle to abduct the arm at the should joint. The infraspinatuslaterally rotates and abducts the arm at the shoulder joint. The teres major extends the arm at the shoulder joint and assists in the adduction and medial rotation of the arm at the shoulder joint. The teres minor laterally rotates, extends, and adducts the arm at the shoulder joint. The coracobrachialis flexes and adducts the arm at the should joint.
What causes pain on right side of back about midway between shoulder and waist?
The cause of the pain could be several things: an injury to the muscles, kidney infection, gall bladder infection, etc. The only way to know the specific cause is to be examined by a doctor.
What would cause shoulder blades to pop out of place?
There are quite a few different things that could cause shoulder blades to pop out of place. Car accidents could cause this.
What would cause your shoulder and bicep to ache and have a feeling as though your shoulder muscles are wasting?
If you have an underlying shoulder injury from any sort of trauma, you may be using your shoulder less and less without even realizing it. I was in an accident during a stunt at a football game, and found out over a year later that I had a torn labrum. It took three months after the accident to go to my doctor specifically to talk about my shoulder, and it was over a year after that that I had surgery. What I noticed, other than the pain, was that the upper part of my scapular bone on that side was sticking out with nothing surrounding it but skin and regular tissue - no muscle. It turned out I had been unconsciously not using that shoulder, and had lost all my muscle mass. Talk to a physician about your concern with wasting of your muscles, and the pain, as they will have your real answer.
