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Shoulder AnatomyThe bones of the shoulderShoulder anatomy is made up primarily of bones, muscles, ligaments, nerves and blood vessels. The arm bone (humerus), the shoulder blade (scapular), the collar bone (clavicle), and the rib cage (bony thorax). Note particularly the ACROMIION (part of the shoulder blade) and the
ACROMIO CLAVICULAR (AC) joint.
ROTATOR CUFF MUSCLESSupraspinatus muscle
Infraspinatus
Biceps muscle
Subscapularis muscle
In the author's experience the SUBSCAPULARIS MUSCLE is a much neglected muscle in shoulder conditions. It is best approached in the armpit with the arm flexed above the head. If it is involved, it may be exquisitely painful on palpation. For interesting cases of shoulder pain (and other) at the Chiropractic Coalface,
click here.
Teres Minor muscle
Strains and tears can occur in all muscles in the body. Usually these occur from: * Injury eg a fall * Disturbed nerve innervation of the muscle eg a irritated nerve in the neck * Overuse eg. repetitive action * Improper warmup in sport eg Tennis players who do inadequate prematch preparation.
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