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.
The posterior division of the Deltoid muscles (in conjunction with other muscle groups) are responsible for the pulling movements and exercises such as bent-over rows, pull-ups, pull-downs, and movements such as moving the arms from center away from the body.A fine example of the deltoid muscles..The posterior division, also known as the posterior deltoid, is located on the backside of the shoulder joint. The Deltoid Muscles consist of three divisions highlighted in this picture. Typically, there is a combination of these divisions which work together to produce specific movements.