Immunologic Tolerance Is Defined As

question 3

Multiple Choice

Immunologic tolerance is defined as:

• A)The removal of an antigen,or the microbes expressing the antigen,by the immune system,so that the host can tolerate the infection
• B)Activation of only B cells,and not T cells,on exposure to an antigen
• C)Unresponsiveness of the immune system to an antigen,which is induced by previous exposure to that antigen
• D)The production of memory B cells and T cells on primary exposure to an antigen,which allows the host to tolerate a secondary exposure to the antigen
• E)Vaccination of individuals against particular pathogens to prevent subsequent infections

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Definitions:

Psychopath

An individual with a personality disorder characterized by persistent antisocial behavior, impaired empathy and remorse, and bold, disinhibited, and egotistical traits.

Borderline Personality Disorder

A mental health disorder characterized by pervasive instability in moods, interpersonal relationships, self-image, and behavior, often leading to impulsive actions and problems in relationships.

Depressive Personality Disorder

A personality disorder characterized by chronic feelings of sadness, emptiness, and emotional instability.

Clusters

Groups of personality disorders. DSM-IV-TR lists 10 personality disorders in three clusters: (A) odd and eccentric disorders (paranoid, schizoid, and schizotypal); (B) dramatic, emotional, or erratic disorders (antisocial, borderline, histrionic, and narcissistic); and (C) anxious and fearful disorders (avoidant, dependent, and obsessive-compulsive).