How Big is Russia Compared to Other Countries. Russia, also known as the Russian Federation is a country located in Northern Eurasia. This country occupies 17,075,200 square kilometers or 10,610,037 square miles of land easily making it the biggest country in the world. However this is a very basic measure that doesnât help us understand or describe how big Russia is compared to other countries, such as Canada, US or Australia.
Dorsal muscles of the head and trunk include the serratus  posterior, the serratus posterior superior, the splenius capitis,  the spinalis, the latissimus dorsi, the multifi â¦ dus, and the  sphincter ani internus.
Trapezius Muscle Posterior. The Trapezius has a trapezoidal-shape and it is a part of the posterior thorax (chest). A trapezoid is a quadrilateral with at least two parallel sides.The right and left Trapezius (which are triangular in shape) and are also flat muscles form a trapezium. It is a large superficial (close to the skin) muscle located at the back of the neck and the upper part of the thorax (chest).