More about the Natural Working Human Apparatus & the combustion engine comparison...

As previously stated, the human body consist of the following systems: Circulatory - Digestive - Immune - Muscular - Nervous -Respiratory - Sensory - Skeletal.

Each system of the human body can be compared to a similar system or function of the combustion engine. The combustion engines needs certain lubricants that protect against friction, air, water and fuel. Friction is created by moving parts inside of the engine which produces heat. If the internal temperature of the engine gets to high metal parts inside the engine will swell or expand making it impossible for the engine to work. This condition is known as engine lock, engine seizure or frozen block. To prevent this situation the combustion engine relies upon a substance called  Antifreeze (a mixture of water and Ethylene-glycol) circulated through the engine block. The other elements needed to prevent over heating is oil which is pumped into the engine block and lightly coats the moving parts and air which is produced by the engine fan. Combined these three elements work in tandem to reduce heat and friction and maintain optimal internal temperature.

In a similar fashion the human system also needs to reduce friction and regulate the core temperature inside the body. To reduce friction the body relies upon a thin layer of fluid (Synovial - made  mostly of carbon dioxide and nitrogen) located between the joints of the skeletal system where our bones meet. To regulate temperature the human body relies upon a sufficient supply of water (hydration) and the release of water known as sweat when physical activity is increased and the core body temperature rises or external temperatures are extreme as found in desert regions or summer climates and outdoor exposure to higher temperatures is extended over time.

There are many wires, tubes pipes and hoses running throughout the engine. These conduits make up the pathways and connections by which the engine transfers signals (communicates with individual parts and systems of the engine), process fuel (food for engine) and circulate fluids (lubricate and regulate temperature, generate energy and create motion). In the engine fuel is stored in a tank located near the engine. Fuel is then pumped through a filter and then into a carburetor where it is mixed with air (oxygen) and converted into a usable energy source. The conduit for fuel is call the fuel line. The electrical signals are created by a battery (stored energy)

In comparison, the human system has many pathways and conduits by which signals are sent instructing the body to perform functions. Some of the functions are considered to be involuntary, that is to say, you do not have total conscious control over a particular action. (Such as your heart beating, or breathing) Other functions or actions are voluntary such as walking, jumping or eating. For signals and instructions the pathways are called nerves connected to organs and systems of the entire body and is known as the Nervous system. Within the body the signals are generated by the brain. Food processing is primarily handled by the digestive system and includes the mouth, esophagus and stomach. Food is broken down into usable nutrients and delivered to the organs and systems of the body via our blood stream. The pathways are called veins and arteries. Excess nutrients (energy) are stored in fat cells to be used later. The heart is the pump that pushes the blood through our body and works continuously from life to death. Sort of like an engine that never turns off.

In an engine filters protect the internal system from contamination and foreign matter (particles). Some of which is created by the wear and tear of normal operation as parts rub together and very small pieces of metal break off and are transferred to other parts and areas of the engine by the various fluids mentioned above. Engines also have several sensors located in certain areas which monitor temperature and conditions of engine operation. Some appear as lights, buzzers or gauges.

Regarding the human body, filtering of contaminants is handled by the immune system. The Immune System has several components starting with the mouth and nose. Others include organs that produce special cells which repair damage to healthy cells due to poisoning, contamination or injury. Conditions of body functions are also monitored or assessed by sensors known as touch, smell, taste, sight and hearing. The five major senses. Together these senses are called the sensory system.

Finally, the internal parts of an engine are housed in a metal shell known as the engine block. The engine block determines the size and shape of the engine as well as to provide protection for inner components.

As for the human system, the housing for internal organs is the skeletal system which is made up of all the bones within the human body. This skeletal system determines the size and shape of a person in addition to providing protection for internal organs.

In closing, the modern combustion engine must have its filters and fluids changed regularly to remove waste and contaminants. The human body however, extracts this material on a daily basis and removes this waste when we go to the bathroom via urination, pores (small openings in the skin cell walls) and bowels. Involuntary removal of rejected substances may occur by the emptying of the stomach contents and will be eliminated through the mouth. This situation occurs when food we have eaten is spoiled and /or the stomach is unable to digest (break down) what has been eaten.

As we have demonstrated, the modern combustion engine and the human body function in a similar way and can be easily compared to one another creating a vivid picture of how we function on the inside. For medical details of specific systems and organs of the body please follow links provided on our site or use any major search engine on the web.