Systems and apparatus of the human body: Discover them News Spain

It is often spoken of systems and apparatus of the human body as if they were synonyms, when in reality there is a difference between the two terms that should be known and that, above all, children learn well so that they can study the human body in the correct way. Then discover the systems and apparatus of the human body.

Systems and apparatus of the human body: Discover them

Every living thing is made up of simple living units called cells. The multicellular organisms, like humans, are made up of cells specialized or cells that perform a specific function. Depending on the type to which they correspond, the cells unite and together form tissues.

In the human body we find several types of tissues:


Nevertheless, the human body is not made of tissues alone but we also have the organs, as well as the apparatus and systems.

In this way, tissues that come together to perform a specific function form an organ such as the heart, brain or stomach, and these they necessarily participate in the distinction between apparatus and system, but what is that difference?

The difference between device and system

The difference is very simple:

Different bodies that collaborate for a common goal (this is the case of the stomach and intestines in the digestive system), constitute a APPARATUS .
Similar bodies (such as those of the nervous system), which are made up of fabrics of the same type, constitute a SYSTEM .

From here we can make the following classification

The systems of the human body are:

Articular system: It is made up of the terminal part of bony elements, covered by cartilage, by an articular capsule and by connective-elastic structures (tendons and ligaments). Connects the bones to each other allowing movement.
Circulatory system: It is made up of a series of “tubes” with different functions (arteries, veins, capillaries, lymphatic vessels) and a pump, the heart, which is the driving force of the blood. It is also connected with other organs that produce the essential ingredients of the two fluids that flow in our body: blood, in fact, and LINF a, a transparent fluid that bathes the tissues and serves to maintain an optimal level of humidity in the body. organism. It transports nutrients, defends the body and regulates body temperature.
Endocrine system: It is formed from glands that generate hormones, which are the body’s chemical messengers. They are responsible for carrying information and instructions from one set of cells to another. It is a system that influences almost every cell, organ, and function in the body.
Skeletal system: It is made up of different tissues: bone tissue, cartilage tissue, medullary tissue. It serves for the support, defense and movement of the human body, in close connection with the articular apparatus and the muscular system.
Immune system: The immune system within the human body is a real invisible barrier that protects against viruses, bacteria, and other pathogens.
Lymphatic system.It is made up of lymphatic capillaries, lymphatic vessels, lymph nodes (which produce lymphocytes), collecting vessels that converge in the thoracic duct. The lymph it produces is discharged into the bloodstream at the neck level in the left jugular vein. The spleen can also be considered a large lymph node.
Muscular system: The muscular system is made up of muscles, which insert into bone segments through tendons, creating connective tissue. Muscle tissue, through its contraction, transforms the chemical energy stored in the body into mechanical energy.
Nervous system.It is distinguished in: central nervous system (CNS); peripheral nervous system (PNS); Autonomic nervous system. It is the system responsible for movement, thanks to the contractile capacity of the muscles.
Integumentary system: Formed mainly by the skin and its annexes, the integumentary system is essential for the body, since it represents the first barrier of protection against external invaders.

The apparatus of the human body are:

Cardiovascular system: Está made up of a muscular pump (the heart) and a series of ducts (blood vessels) in which a fluid (blood) moves that is pumped throughout the body.
Digestive system. It consists of the following organs: mouth, pharynx, esophagus, stomach, small intestine, large intestine, liver and pancreas (these last two are important glands). It is the set of organs responsible for the transformation and assimilation of food. These organs also provide for the elimination of waste substances (eg, through feces) and « work » in close contact with the cardiocirculatory system.
Excretory or urinary system: It is made up of the following organs: kidneys, ureter, bladder, urethra. It removes waste substances from the body, has the task of cleaning the blood of toxic substances, so it is closely related to the cardiocirculatory system.
Locomotor apparatus: It is made up of bones, muscles, joints, tendons and ligaments that come together so that we can move. Without him we could not move.
Reproductive system: The function of the reproductive system is reproduction. In men and women it is different. The first includes the testicles, two sperm-producing organs, and the penis, the male sexual organ, as well as a system of conduits that connects them; The female reproductive system includes the ovaries, two glands where eggs are produced, the uterus, a hollow organ that will house the fertilized egg, and the vagina, the female sexual organ, as well as a series of tubes that connect them.
Respiratory system: It consists of the following organs: nose, mouth, pharynx, larynx, trachea, bronchi, lungs. Provides oxygen to tissues and facilitates the elimination of carbon dioxide.