Upper Arm

Clavicle – sits at the top of the shoulder, almost as the collar bone which connects the arms to the base of the neck. It's a very thin bone up at the top, more for position than for anything else. Therefore, any weight that is borne on the shoulder will gradually sink in over time creating a stooped or bowed look to the self. Often the person can assume a hunched over appearance. Ideally, the weight should be shifted to the arms if at all possible or to the head. This is why you'll often see those in headhunter cultures going about with buckets, pots, and whole children attached to their head. With these things firmly secured, carrying them really has no limits in weight. Other sources of support include the shoulders both on the back and at the front, where the breast tissue connects and pulls down in place. Due to this, you'll see some large breasted women assume a habitual posture. The attachments for these or what society deems as supports also pulls these back down by means of a weight. Due to position though as lined up with the ribs, the clavicle is often one of the last bones to be broken unless its been hit from above with a large heavy object or by a blunt force in trauma. Trauma in this portion is usually treated by binding the arm in place to the chest to prevent increased strain that would worsen the break or the tear and so on from there. The goal of this is to prevent motion as little as possible reaching out from the source since the clavicle is involved in moving the arm.

Scapula – supports the shoulder and arms there from behind. It's that large flat bone felt at the back near the spine. Since it's only attached at the clavicle and also the arms, this bone can rotate 180 degrees in almost any direction. It's 180 degrees up or down in case you were wondering and then 90 degrees or so on above and behind. Again, due to position, it's last to be broken but more commonly strained or pulled out of place. Pains in this region are more likely to come from excessive strain or force placed on the shoulders or arms usually from weights or most anything else. While it may be tempting to lift heavy burdens with only your arms, it's better to use other mechanical devices that are wheeled as with a wheelbarrow or even a sledge. Treatment for this usually includes rest with a slow resumption of duties. The excessive bearing of weights should be restrained for a while at least until the feelings of strain have somewhat resolved.

Humorous – doesn't mean it's funny at first as is the case with the root Latin word. It describes the bone rather in the middle or center of the arm just in the middle. Basically it connects up top at the shoulder with the clavicle and scapula which are responsible for raising the arm or so on up from it's current resting position. As with all the bones in the arm, this one likewise attaches to muscles which lie just up above. Frequent motion or repetitive movements from say work or a job or in this case actual strengthening exercises will result in growth of the muscles in both of the genders. That is to say, men and women alike are capable of forming muscles in these places especially due to their job, form, or physical function. It's not at all uncommon to see women with child that are capable of lifting almost anything else. There's also blood vessels that run alongside and into feeding the muscles. Sometimes the arm can get out of place at the top of the junction thereby dislocating the shoulder. By applying a small bit of tension or pulling straight out on the arm with it fully extended at a clockwise angle, you should be able to apply enough pressure to result in the arm being put back in place at the socket. There's a depression in the bone at the top forming a natural location for the top or head of the bone to fit neatly into place. Any sudden movement on the arm from this point on down with sufficient force say is bound to result in a break. There's a few different types of the fractures with complete shattering of the bone all across, a hairline which looks like a small line in it's natural form, or one that is jagged and torn. These types of breaks are often associated with something falling on your arm or hitting it with great enough force. Usually an angle is enough to shatter the bone thereby causing it to stick out from the skin. It'll either tear the skin open or else be felt as an unusual bump or depression that's torn just under the surface or so on from there. Since there's nothing surgical that can be done with the bone, your best bet is to bind it up and wait for it to naturally heal in about three to six months from here on till now. The only exceptions to this rule is in cases like the jagged break or the complete break which surgical reduction, a rod or some staples might could possibly heal. The bone in the case of the complete break will need some stabilization and scaffolding on which the new bone will naturally form. The jagged break will need to be straightened or surgically realigned back into place with something to strengthen if possible or build on back together. The other thing you'll find is the arm still attached to the chest. It's a device that immobilizes the arm thereby preventing any possible movement of sorts. Due to upper arm and possible shoulder involvement, it's necessary to resuming the full former function.