1 The development of anatomy was greatly affected by Darwin's theory of evolution.
2 The theory of the two signaling systems was offered by I.P. Pavlov.
3 The gases are transported to and from tissue cells by the blood.
4 The skeleton is made up of the bones.
5 Contraction in skeletal muscles are stimulated by electrical impulses.
6 The thoracic cavity is bounded by the ribs laterally.
7 The spinal column is supported by many strong ligaments and muscles of the trunk.
8 The work of the heart was influenced by many factors.
9 The outer wall of the heart is created by three layers.
10 The right and left sides of the heart are separated by a wall called septum.
The message about the Russian flag: Red symbolizes energy, strength, courage, love and blood shed for the Fatherland. Blue is the color of faith and loyalty, consistency and honesty. White means peace, excellence, nobility and openness. There is a version that the red-blue-white tricolor was the first commercial maritime flag of Russia. Interesting fact: The national flag in Russia appeared at the turn of the 17th-18th centuries, during the era of the formation of Russia as a powerful state. For the first time the white-blue-red flag was raised on the first Russian warship "Eagle", during the reign of the father of Peter I, Alexei Mikhailovich. The Russian flag was adopted "August 22, 1991 year"