There are devices that share the essential needs of the body from the environment and are essential for its existence: the movement device, which includes the skeleton and muscles, allows the living creature to obtain its necessary environmental requirements; the skin provides the body with protection from environmental damage and can be distributed to the heat (disposal of excess heat) The nervous system absorbs information from the environment by the senses, information necessary to obtain the necessary needs, protection, reproduction and so on.
A section of the body organs responsible for coordination and organization within the body. This is the transport device, which, in addition to its functional function in transporting the necessary needs to the cells, carries in the blood additional substances (such as hormones) that transmit information and connect between different parts of the body. The nervous system, which monitors the body's work through the brain and nerves, (The hormonal system) - which produces hormones - substances that affect specifically in different cells in the body and carry with the blood stream, the immune system - responsible for protecting the body from pathogens. It can be said that at any moment - all organs share what happens in the body; part of it by increasing its activity and another part by reducing its activity.
A section of the body organs responsible for coordination and organization within the body. This is the transport device, which, in addition to its functional function in transporting the necessary needs to the cells, carries in the blood additional substances (such as hormones) that transmit information and connect between different parts of the body. The nervous system, which monitors the body's work through the brain and nerves, (The hormonal system) - which produces hormones - substances that affect specifically in different cells in the body and carry with the blood stream, the immune system - responsible for protecting the body from pathogens. It can be said that at any moment - all organs share what happens in the body; part of it by increasing its activity and another part by reducing its activity.
