What are the 4 characteristics of adaptive immunity?

There are four characteristics of adaptive immunity: antigenic specificity, diversity, immunologic memory and ability to distinguish between self and non-self. An immune response involves Lymphocytes (B-cells and T-cells) and antigen presenting cells (macrophages, B-cells, and dendritic cells).

What are the defining characteristics of specific and nonspecific immunity?

Non-specific immunity is generalized immunity that all humans are born with, including barriers, like skin, chemicals, like stomach acid and tears, and generalized white blood cells, like macrophages. Specific immunity is learned by the body based on previous exposure to pathogens, and includes B-cells and antibodies.

What is specific immunity?

Acquired immunity is also called specific immunity because it tailors its attack to a specific antigen previously encountered. Its hallmarks are its ability to learn, adapt, and remember. Acquired immunity takes time to develop after first exposure to a new antigen.

What is the different between specific and non-specific?

Specific and nonspecific immune response are two types of immune responses generated by the immune system of the body. Specific immune response belongs to the adaptive immunity while nonspecific immune response belongs to the innate immunity.

What is the difference between specific and nonspecific immune function?

Immunity from disease is actually conferred by two cooperative defense systems, called nonspecific, innate immunity and specific, acquired immunity. Nonspecific protective mechanisms repel all microorganisms equally, while the specific immune responses are tailored to particular types of invaders.

What does specific immunity depend on?

In general, specific acquired immunity to human pathogens is directed to only one or a few protective antigens. The immunologic properties of the protective antigen are important determinants of the human protective defense.

What are 2 types of nonspecific immunity?

Nonspecific defenses include anatomic barriers, inhibitors, phagocytosis, fever, inflammation, and IFN. Specific defenses include antibody (more…)

When does specific immune response occur?

Specific immune responses are triggered by antigens. Antigens are usually found on the surface of pathogens and are unique to that particular pathogen. The immune system responds to antigens by producing cells that directly attack the pathogen, or by producing special proteins called antibodies.

What are the characteristics of non-specific immunity?

Innate, or nonspecific, immunity is the defense system with which you were born. It protects you against all antigens. Innate immunity involves barriers that keep harmful materials from entering your body. These barriers form the first line of defense in the immune response.

What is the difference between non-specific and specific immunity quizlet?

nonspecific immunity are things that protect the body from various bacterias, viruses, and pathogens. These include the first and second line of defense, such as the skin, fever( body gets hot as an attempt to kill the pathogen). Specific immunity are things that protect the body from specific pathogens.

What are 5 examples of nonspecific immunity?

Nonspecific defenses include anatomic barriers, inhibitors, phagocytosis, fever, inflammation, and IFN.

What is specific immunity quizlet?

Specific Immunity. –Provides protection against one specific substance but no others. -Protect against a specific foreign substance. Ex) Measles virus (a specific pathogen) -Lymphocytes (B & T lymphocytes) and macrophages play a key role.

Which of the following is a specific defense in the body?

Answer and Explanation: The specific defense in the body is initiated by the action of antibodies. Antibodies are specific for the type of antigen to which a complex between the antigen and the antibody can be formed.

Are natural killer cells specific or nonspecific?

Recent advances, however, indicate that NK cells specifically recognize virus-infected cells in a manner akin to their recognition of tumor cells, and also respond non-specifically to viral infections.

What is the body’s most important nonspecific defense?

The Body’s MOST IMPORTANT Nonspecific Defense is the SKIN. UNBROKEN Skin provides a continuous layer that protects almost the whole body. Very Few Pathogens can penetrate the layers of dead cells at the skin’s surface.

What are the 2 types of specific immune defenses?

There are two broad classes of such responses—antibody responses and cell-mediated immune responses, and they are carried out by different classes of lymphocytes, called B cells and T cells, respectively. In antibody responses, B cells are activated to secrete antibodies, which are proteins called immunoglobulins.

When does specific immune response occur?

Specific immune responses are triggered by antigens. Antigens are usually found on the surface of pathogens and are unique to that particular pathogen. The immune system responds to antigens by producing cells that directly attack the pathogen, or by producing special proteins called antibodies.

What is specific line of defense?

The third line of defense is specific resistance. This system relies on antigens, which are specific substances found in foreign microbes. Most antigens are proteins that serve as the stimulus to produce an immune response.

What is a specific defense against infection?

Natural barriers include the skin, mucous membranes, tears, earwax, mucus, and stomach acid. Also, the normal flow of urine washes out microorganisms that enter the urinary tract.

Is innate immunity specific?

Innate immune responses are not specific to a particular pathogen in the way that the adaptive immune responses are. They depend on a group of proteins and phagocytic cells that recognize conserved features of pathogens and become quickly activated to help destroy invaders.