The shoulder joint is formed where the humerus (upper arm bone) fits into the scapula (shoulder blade), like a ball and socket. Other important bones in the shoulder include: 1  The acromion is a bony projection off the scapula. 2  The clavicle (collarbone) meets the acromion in the acromioclavicular joint.
List of boroughs and census areas in Alaska. The U.S. state of Alaska is not in counties, as 48 other states are (Louisiana has parishes instead). It is in boroughs. Many of the more densely populated parts of the state are in Alaska's eighteen organized boroughs, which are somewhat similar to counties in other states.
In the United States, a county is a political and geographic subdivision of a state. Of the 50 U.S. states, 48 states are divided into a total of 3,007 counties. The number of counties per state ranges from the three counties in Delaware to the 254 counties in Texas.