The human body is the physical and material structure of the human being.
Examine the different parts of the human body.
Da click on the parts of the human body for more details.
It is the set of organs and tissues of the body, which secrete a type of substances called hormones. These are released into the bloodstream and regulate some of the body’s functions at points far removed from where they are produced. It is a signal system that bears some similarities to the nervous system, but instead of using electrical impulses at a distance, it works exclusively by means of substances (chemical signals) that are released into the blood. The endocrine system acts as a cellular communication network that responds to stimuli by releasing hormones.
The nervous system is a complex set of cells responsible for directing, supervising and controlling all the functions and activities of our organs and body in general. It can be divided into two well differentiated parts to facilitate its study: the central nervous system, which is made up of the brain and the spinal cord, and the peripheral nervous system, which includes all the peripheral nerves, both the motor nerves and the sensory nerves
The immune system is the body’s natural defense against infection. Through a series of steps, your body fights and destroys invading infectious organisms before they do harm. Through a series of steps called an “immune response,” the immune system attacks organisms and substances that invade the body’s systems and cause disease. The immune system is made up of a network of cells, tissues, and organs that work together to protect the body. These cells are white blood cells (leukocytes) of two basic types, which combine to find and destroy the substances or organisms that cause disease.
The immune system is the body’s natural defense against infection. Through a series of steps, your body fights and destroys invading infectious organisms before they do harm.
Through a series of steps called an “immune response,” the immune system attacks organisms and substances that invade the body’s systems and cause disease.
The immune system is made up of a network of cells, tissues, and organs that work together to protect the body. These cells are white blood cells (leukocytes) of two basic types, which combine to find and destroy the substances or organisms that cause disease.
The circulatory system is divided into a major or systemic circuit and a minor or pulmonary circuit , both of which originate in the heart and consist of blood vessels that run throughout the body and lungs, respectively.
This is a network of organs, lymph nodes, ducts, and lymphatic vessels that produce and transport lymph from tissues to the bloodstream.
The lymphatic system is a main part of the body’s immune system.
The lymph is liquid between transparent and white compound:
- White blood cells, especially lymphocytes, the cells that attack bacteria in the blood
- Fluid from the intestines, called chyle, which contains protein and fat
The lymph nodes are small, smooth and round or bean – shaped structures. They are usually not easily seen or felt. They are located in clusters in various parts of the body such as: the neck, armpits, groin, the interior of the center of the thorax and the abdomen.
These nodes make immune cells that help the body fight infection. They also filter lymphatic fluid and remove foreign material, such as bacteria and cancer cells. When bacteria are recognized in the lymph fluid, the lymph nodes make more white blood cells to fight the infection. This causes these nodes to swell. Swollen glands are sometimes felt in the neck, under the arms, and in the groin.
The lymphatic system includes: the tonsils, adenoids, spleen, and thymus.
It consists of removing waste substances from the body. These substances are the residues or remains of the functioning of cells.
The substances that are excreted are liquid or gaseous.
Liquids such as urine or sweat.
Soft drinks like carbon dioxide.
The excretory system is made up of the urinary system or system , the lungs and the skin.
The urinary system is the set of organs that produce and excrete urine, the body’s main waste fluid. The human urinary system consists of the kidneys, ureters, urinary bladder, and urethra.
The lungs are responsible for removing the carbon dioxide generated by the cells from the blood. This is done in the pulmonary alveoli and is removed to the outside through breathing
Through the skin and through the sweat glands , sweat is eliminated .
Sweat is made up of water and mineral salts and serves to hydrate and refresh the skin.
It is the set of different organs in charge of the vital function of reproduction.
Human reproduction is sexual reproduction: it needs a male sex cell (sperm) and a female sex cell (ovum).
The male reproductive system serves to produce male sex cells, sperm.
The male reproductive system is made up of:
- The penis: a muscular organ with an inner tube called the urethra through which the semen comes out .
- Urethra: Duct through which the urine contained in the bladder is expelled to the outside.
- Glans: it is the final part of the penis that is pink or reddish in color, which in most cases tends to be thicker than the rest of the penis and the most sensitive area. The pre-seminal fluid, semen and urine come out of this place.
- The testicles: organs responsible for producing sperm. They are housed in a bag called the scrotum .
- Vas deferens: tubes through which the testicles communicate with the urethra .
- Prostate and seminal vesicles : Organs that produce semen or fluid in which sperm swim and are transported.
The female reproductive system is used to produce female sex cells, eggs, and to store and develop the embryo until delivery.
The female reproductive system is made up of:
- Vulva: outer part of the reproductive system, with folds called labia.
- Vagina: organ that connects the uterus with the outside of the body.
- Uterus: muscular organ designed to house the embryo.
- Cervix or cervix: it is the lower fibromuscular portion of the uterus that projects into the vagina.
- Endometrium: Mucous membrane that lines the cavity of the uterus.
- Ovaries: producing organs of female cells, the ovules .
- Fallopian tubes: tubes that communicate the ovaries with the uterus and the place where fertilization occurs.
The reproductive system works as follows:
The organs that produce sex cells: testes and ovaries, begin to function at puberty, at approximately twelve years of age.
This maturity is accompanied by a series of changes in the body. Thus, women have their hips widened and their breasts developed. Men deepen their voices and grow beards. Both genders are covered with beautiful pubis and armpits.
Once the sexual organs have matured enough, men begin to produce sperm and women eggs approximately every 28 days. If this egg meets a sperm in the fallopian tubes and is fertilized, that is, the egg and sperm unite, the resulting cell begins to divide and move down to the uterus. There it joins the wall and the fetus begins to form.
If the egg does not meet the sperm, it will go down from the fallopian tubes to the uterus until it comes out together with the others produced and will be discharged outside, and this is what is called the rule or the period.
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