Body's second line of defense

The second line of defence is a group of cells, tissues and organs that work together to protect the body. This is the immune system. The cells involved are white blood cells (leukocytes), which seek out and destroy disease-causing organisms or substances. There are different types of leukocytes.

The first line of defense is skin, the second line of defense is white blood cells. If the pathogen has passed 1st and 2nd line of defense, your third line of defense comes in to play.

Tertiary line of defense includes acquired and innate immunity. Tetiary line of defense are your antibodies. It involves non-specific responses to pathogens that have invaded the internal environment of the organism. For example macrophages are cells derived from monocytes (a type of white blood cell).

Terms in this set (75) -Operates when Pathogens penetrate the Skin or Mucous Membranes. Composed of Cells, Antimicrobial Chemicals, and Processes, but no physical barriers. Many of these components are contained or originate in the Blood.

It is a 3-pronged attack on any microbes that have survived the first line of defence. Defense Components of Blood.

Even though this second line of defense is non-specific there is a central system in place for collection and distribution of these cells called as lymphatic system. Body’s internal defence comprises of : 1. Phagocytes that include macrophages and white blood cells specifically neutrophils and monocytes. Pathogens that do get into your body can trigger the second line of defense , known as the inflammatory response. In the inflammatory response, fluid and white blood cells leak from blood vessels into nearby tissues that have become infected.

The white blood cells then fight the pathogens. The first of these are external defenses, such as mucous, skin, and hair. Foreign Tissues cross 1st line of defense and. A second line of defense is housed within the body : a finely tuned immune system that recognizes and destroys foreign substances and organisms that enter the body.

Happens when body detects pathogen entry through binding receptor molecules. Primary defences are the initial barriers that prevent us from being harmed by pathogenic organisms entering our body. Our bodies are covered by the skin and this is the first primary defence that we have. Second defense line : Innate immune system Part of the immune system in charge of delivering that first punch to pathogens that penetrated the first defense line is so called innate immunity.

The cancer cell has an enzyme, beta-glucosidase, which, when it comes in contact with nitrilosides, converts those nitrilosides into two molecules of glucose, one molecule of benzaldehyde and one molecule of hydrogen cyanide. One of the body’s most important physical barriers is the skin barrier, which is composed of three layers of closely packed cells. The thin upper layer is called the epidermis.

A secon thicker layer, called the dermis, contains hair follicles, sweat glands, nerves, and blood vessels. A type of white blood cells , called Phagocytes, are released.

The immune system is composed of two major subdivisions, the binnate or nonspecific immune system and the adaptive or specific immune system. The compliance and risk functions may have their own management and governance committees that are part of the ERM framework, or they may have direct reporting lines into appropriate ERM framework structures. The innate immune system is a primary defense mechanism against invading organisms, while the adaptive immune system acts as a second line of defense.

One type, the T cells, mature after having first migrated from the bone marrow to the thymus gland.