What Are the Systems of the Body?

There are eight major systems in the human body: the motor system, nervous system, endocrine system, circulatory system, respiratory system, digestive system, urinary system, and reproductive system. These systems coordinate and enable various complex life activities in the human body to proceed normally.

Eight major human systems

Human (animal) structure:

Organs related to digestion and feeding in the human body include: oral cavity,

The nervous system is a system that plays a dominant role in the human body. Various information about the internal and external environment

The respiratory system includes the respiratory tract (

The blood circulation system is a system composed of the body's body fluids (including intracellular fluid, plasma, lymph, and interstitial fluid) and the channels through which they circulate. The blood circulation system is divided into

The urinary system consists of the kidney, ureter, bladder and urethra. Its main function is excretion. Excretion refers to the physiological processes that are produced during the metabolism of the body that are not used by the body or that are harmful to the body. Part of the excreted material is a metabolite of nutrients; the other part is a product formed when senescent cells are destroyed. In addition, the excrement also includes some excess substances that are ingested with food, such as excess water and inorganic salts.

The reproductive system is a general term for organ components that are closely related to reproduction in an organism.

The function of the reproductive system is to produce germ cells, reproduce new individuals, secrete sex hormones and maintain

Many organs in a multicellular organism are linked together to complete some continuous basic physiological function. These organs form a system. Humans and higher animals have eight systems, namely the digestive, respiratory, circulatory, urinary, motor, reproductive, endocrine and nervous systems. The above systems constitute the human body and the animal body, and under the regulation of the nervous and endocrine systems, they are interconnected and restricted to jointly complete all the life activities of the entire organism to ensure the survival and ethnicity of the individual organism.