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Posts Tagged ‘immune system’

Macrophage in action.

Phagocytes are also leaving the bloodstream and accumulates in the tissues during the first hours of infection and is responsible for the formation of pus. Monocytes are another type of phagocytes in the blood. They also cover the walls of the veins in organs like the liver and spleen. This act to capture micro-organisms that pass through the blood. When monocytes leave the bloodstream and enter tissues, they change shape and size to become macrophages.

Phagocytes serve various critical functions in the body against infections. They have the ability to leave the bloodstream and move into the tissues to the site of infection. When they arrive at the site of infection, eat the invading microorganism. Ingestion of micro-organisms is much easier as they are covered with antibodies or complement or both. Once the phagocyte eat the micro-organism initiates a series of chemical reactions within the cell that result in the death of the micro-organism. Read the rest of this entry »

T lymphocyte

T lymphocytes: T lymphocytes (sometimes called T cells) are another type of immune cells. T lymphocytes do not produce antibody molecules. The specialized functions of T cells are 1) directly attack foreign antigens such as viruses, fungi, transplanted tissues and 2) to act as regulators of the immune system.

T lymphocytes develop from stem cells in the bone marrow. Early in the life of the fetus, immature cells migrate to the thymus, a specialized body of the Immune System in the chest.

In the thymus, immature cells develop mature T lymphocytes (“T” for thymus). The thymus is essential for this process, and T cells can not develop in the fetus if it is Timo. Mature T cells leave the thymus and go to other organs of the immune system, such as the spleen, lymph nodes, bone marrow and blood. Read the rest of this entry »

B lymphocytes

They are specialized cells of the immune system (also known as B cells) whose main function produce antibodies (also called immunoglobulins or gamma globulins). B lymphocytes develop from primitive cells (stem cells) in bone marrow. When mature B cells found in bone marrow, lymph nodes, spleen, certain areas of the intestine, and in less extension in the bloodstream.

When B cells are stimulated with foreign material (antigens), respond to mature in other types of cells called plasma cells. Plasma cells produce antibodies. The antibodies find their way into the flow of blood, respiratory secretions, intestinal secretions, and even tears. Read the rest of this entry »

Location of the Immune System.

Like all body parts must be protected against micro-organisms and other foreign materials, the immune system is located and has access to all parts of the body. But the most important components of the immune system are concentrated in the blood, thymus, bone, tonsils, lymph nodes, bone marrow, spleen, lungs, liver and intestines.

When an infection starts in a place that only has a few components of the immune system, such as skin, the body sends signals to attract large numbers of cells to the site of infection. Read the rest of this entry »

Our body is composed of different bodies, each with special functions.

For example, the heart, arteries and veins are part of the cardiovascular system has the function of pumping blood throughout the body. The stomach, liver, pancreas and intestines are part of the digestive system whose function is to digest food, absorb in the body, and transform them into energy. The nose, throat and lungs are the respiratory system whose function is to carry oxygen to the blood and body.

Functions of Immune System.

As these organ systems, the immune system has a variety of tissues and organs, each contributes in some way to the specialized functions of the Immune System. Read the rest of this entry »

Sun rash is also called solallergi or polymorft lysutslett. In Scandinavia, probably 10-15 percent of the population this serious skin disease.

Who gets sun rash?
Sun rash is most common in children and adolescents, but can occur at any age. It is not uncommon for adults who have endured the sun well, suddenly develops sun rash. Sun rash often move by itself.

What is sun rash?
Sun rash is an allergic reaction in the skin. This response is triggered when ultraviolet rays hitting your skin. Most often it is the UVA, which provides sun rash, but also the UVB can cause the same reaction. The energy from the ultraviolet rays emitted in the skin and affect the cells. We do not know the exact mechanism that causes the immune system recognize these reactions as “undesirable” and starts an allergic reaction. Read the rest of this entry »

Aromatherapy is a cure system that uses essential oils and plant extracts for the cure of many disorders. It works, basically, through physical contact with natural oils and aromatic essences are derived from nature.

Although in recent years, aromatherapy has been modernized and has greatly increased its popularity, is a very old technique. It is believed that his birth is situated in the pre-industrial era, when medical science was not developed and the human being served as natural resources for the healing of various disorders.
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Being optimistic not only improves your mood but it is good for your health, according to a new study in the United States.

An optimistic attitude helps improve the functioning of your immune system. Volunteers for research were students in the first year of law school, among them was found that those most optimistic had a stronger immune system and responded better to viruses and bacteria.

When his optimism waned, so did their immune system.

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