Describe the external structure of the heart. Indicate the main functions of the heart.

the heart is a human organ the size of a fist. It has four chambers. Consists of right atrium, left atrium, right ventricle and left ventricle. The heart’s main function is to pump blood.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.