List the main organ systems and their functions.

Skeletal and muscular systems – support and movement; digestive – providing the body with nutrients; blood – transport of substances, protection from infections; respiratory – providing the body with energy; urinary – removal of liquid metabolic products from the body; nervous and endocrine systems – coordination of the work of all organ systems; sexual – procreation.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.