What is the body's second line of defense against pathogens

If the pathogens are able to get past the first line of defence, for example, through a cut in your skin, and an infection develops, the second line of defence becomes active. Through a sequence of steps called the immune response, the immune system attacks these pathogens. If this defence is broken, the second line of defence within your body is activated.

It acts as a barrier between invaders ( pathogens ) and your body. Skin forms a waterproof mechanical barrier. Start studying Microbiology Ch.

The bodys second line of Defense. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The Immune System has Lines of Defense Against Foreign Pathogens : 1. Physical and Chemical Barriers (Innate Immunity) 2. Nonspecific Resistance (Innate Immunity) 3. In the first line of defense, the body has barriers that prevent pathogens from entering your body’s cells in the first place. The first line of defences. It involves sweat, skin, tears, mucus and stomach acid.

Our skin and mucous membraneswhich line the body passages, are fairly effective in keeping most pathogens out of the body.

This will result in what is called an inflammatory. The larger number of pathogens , the greater damage they can do, and the harder for the body to mount successful defense. 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. Many different infectious agents can cause pathology, and those that do are referred to as pathogenic microorganisms or pathogens. This is the first line of defense against pathogens , also called the non-specific immune system. The second line of defence is a group of cells, tissues and organs that work. Once barriers like the skin and mucosal membranes are breache the immune system’s second line of defence against invading pathogens is its non-specific (innate) response.

This response is rapi short-lived and generic, and it lacks any memory of previous infections. The innate immune system is a primary defense mechanism against invading organisms, while the adaptive immune system acts as a second line of defense. The skin is the first physical barrier, providing a protective layer that is hard to penetrate.

User: Which of the following are part of the body’s first line of defense against pathogens ? Weegy: Which of the following are part of the body? The third line of defense , the immune system, provides the specific responses and memory. He talks about the first line of defence, which involves the skin barrier. He then talks about how pathogens can get behind this barrier into deeper tissues.

This calls for the immune system – cells designed to hunt down and kill the worst bugs that we face. The immune system has three lines of defense.

Pathogens are disease-causing agents, such as bacteria and viruses. Defenses in the first line are the same regardless of the type of pathogen. The actions of alpha and beta interferons.