Human Body Organs: What and What Are They? Subdivision into Apparatuses

, arterial and venous nerves and blood vessels.

According to an anatomical convention, organs with similar function make up an apparatus (or system).

they are all those formations of at least two different tissues, which have the task of fulfilling a very specific function.
The organs of the human body are numerous: taking into account the function performed, anatomists count between 70 and 80, divided into a dozen systems (or apparatuses).

Just think that the digestive system of the human body includes more than 12 organs; these include: the mouth (with teeth and tongue), the various types of salivary glands, the pharynx, the esophagus, the stomach, the various tracts of the small intestine, the large intestine, the liver, the gallbladder, the mesentery, the pancreas and the anal canal with the anus.

, kidneys, bones, muscles, etc.) count as one "unit (so, for example, the heart).