Located in the continent of Europe, Bulgaria covers 108,489 square kilometers of land and 2,390 square kilometers of water, making it the 105th largest nation in the world with a total area of 110,879 square kilometers. Bulgaria became an independent state in 1878, after gaining its sovereignty from Turkey.
The deltoid muscle is used in all side lifting movements and any movement of the humerus on the scapula. It is divided into three portions, anterior, middle and posterior, with the fibres having different roles due to their orientation.he deltoid muscle is used in all side lifting movements and any movement of the humerus on the scapula. It is divided into three portions, anterior, middle and posterior, with the fibres having different roles due to their orientation.
In human anatomy, the deltoid muscle is the muscle forming the rounded contour of the shoulder. Anatomically, it appears to be made up of three distinct sets of fibers though electromyography suggests that it consists of at least seven groups that can be independently coordinated by the nervous system.