Quick Answer: Which Of The Following Is An Example Of First Line Of Defense?

What are the three branches of the immune system?

Humans have three types of immunity — innate, adaptive, and passive: Innate immunity: Everyone is born with innate (or natural) immunity, a type of general protection.

For example, the skin acts as a barrier to block germs from entering the body..

What is the 1st 2nd and 3rd line of defense?

The first line of defense are the physical and chemical barriers, which are considered functions of innate immunity. … The third line of defense is specific resistance, which is considered a function of acquired immunity.

What are the 4 first line of defense against infection?

The skin, mucous membranes, and endothelia throughout the body serve as physical barriers that prevent microbes from reaching potential sites of infection. Tight cell junctions in these tissues prevent microbes from passing through.

What are the 3 lines of defense?

In the Three Lines of Defense model, management control is the first line of defense in risk management, the various risk control and compliance over- sight functions established by management are the second line of defense, and independent assurance is the third.

Is Inflammation the first line of defense?

There are three lines of defense: the first is to keep invaders out (through skin, mucus membranes, etc), the second line of defense consists of non-specific ways to defend against pathogens that have broken through the first line of defense (such as with inflammatory response and fever).

Is inflammation a second line of defense?

The second line of defense attacks pathogens that manage to enter the body. The second line of defense includes the inflammatory response and phagocytosis by nonspecific leukocytes.

What are the lines of defense in the human body?

D. Reviewed by Emily Henderson, B.Sc. The human body has three primary lines of defense to fight against foreign invaders, including viruses, bacteria, and fungi. The immune system’s three lines of defense include physical and chemical barriers, non-specific innate responses, and specific adaptive responses.

What is an important first line defense in the eyes?

Innate defenses. Innate immunity is the first line of defense against corneal infection.

What line of defense are interferons?

Interferons (IFNs) are low molecular weight proteins that belong to the class of glycoproteins known as cytokines. IFNs are part of the non-specific immune system and are an important first line of defense against viral infections.

What are the 3 main functions of the immune system?

The tasks of the immune systemto fight disease-causing germs (pathogens) like bacteria, viruses, parasites or fungi, and to remove them from the body,to recognize and neutralize harmful substances from the environment, and.to fight disease-causing changes in the body, such as cancer cells.

What is the first line of defense quizlet?

The first line of the defense is the surface barrier. Skin as a chemical and physical defense. Mucous membranes prevents epithelial cell entrance.

What is the three lines model?

The Three Lines Model allows for as many reporting lines between management and the governing body as required. In some organizations, most notably regulated financial institutions, there is a statutory requirement for such arrangements to ensure sufficient independence.

Is Fever second line of defense?

If pathogens do manage to enter the body, the body’s second line of defense attacks them. The second line of defense includes inflammation, phagocytosis, and fever.

What are the body’s first line of defense?

The first line of defence is your innate immune system. Level one of this system consists of physical barriers like your skin and the mucosal lining in your respiratory tract. The tears, sweat, saliva and mucous produced by the skin and mucosal lining are part of that physical barrier, too.

What is the 2nd line of defense?

If pathogens are able to get past the first line of defence, for example, through a cut in your skin, an infection develops. 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.

Why is skin the first line of defense?

Skin, tears and mucus are part of the first line of defence in fighting infection. They help to protect us against invading pathogens. You have beneficial bacteria growing on your skin, in your bowel and other places in the body (such as the mouth and the gut) that stop other harmful bacteria from taking over.

Is hair a first line of defense?

The First Line of Defense It enters the body through a hair follicle of the skin when it’s in a much smaller stage of its life cycle. … The immune system protects the body from worms, germs, and other agents of harm. The immune system is like a medieval castle.

What are the 4 phases of the immune response?

CardsTerm What are the four stages of the immune response?Definition 1. Lag phase 2. Exponential phase 3. Steady state phase 4. Decline phaseTerm What cells allow T cells to form into effector T cells and B cells to form into plasma cells?Definition Helper T cells116 more rows•Jan 30, 2012