Urine and tears are examples of _____ line of innate defenses.
first
Complement proteins attract phagocytes to a pathogen by _____.
chemotaxis
When you are exposed to disease by coming into contact with someone else who has the disease ______ occurs.
naturally acquired active immunity
Your body has two types of immune responses that can defend against disease and include
innate immunity and adaptive immunity
____ interfere with viral replication and diffuse from one cell to another rending the receiving cells resistant to invading virus.
interferon
Which of the following statements is NOT true?
monocytes enlarge to become macrophages which always remain fixed in their locations
Which of the following is NOT part of the second line of innate immunity?
antigen-presenting cells
____ from blood become activated and poke holes in microbial membranes causing them to undergo cytolysis.
compliment proteins
The intial response to HIV infection is a modest decline in the number of circulating
helper T cells
Which class of immunoglobulins make up 80% of the antibodies in the blood and the only class to cross the placenta from mother to fetus providing considerable immune protection to newborns?
IgG
A sever, life-threatening allergic reaction in which the airways constrict so much that the person has extreme difficulty breathing is called
anaphylactic shock
If microbes are released after an infected cell is killed
phagocytes kill the released microbes
An _____ is an antigen that evokes an hypersensitivity reaction
allergen
______ is directed against extracellular pathogens.
antibody-mediated immunity
Which of the following cells kill infected host cells by releasing granzymes that induce apoptosis?
cytotoxic T cells
____ are short peptides that kill microbes and attract other cells that participate in immune responses.
antimicrobial proteins
All of the ollowing are components o the second line of innate defense EXCEPT
sebum
Which of the following statements is TRUE concerning the first line of innate immunity?
urine washes microbes from urethra
A/an _____ is any substance that has the ability to provoke an immune response.
antigen
Which of the following is NOT true concerning the HIV virus?
if left untreated, people with HIV infections begin showing symptoms of AIDS within 10 to 12 months after initial exposure
Which o the following cells are capable of producing antibodies?
B lymphocytes
A cell infected by a virus will produce _____ that signal neighboring cells to produce this protein which interferes with viral replication.
interferons
______ is a unique (to each human unless you are an identical twin) set of proteins which help T cells and B cells distinguish your body's own cells and antigens from foreign cells and antigens.
major histocompatibility complex
Urine and tears are examples of _____ line of innate defenses.
first
Complement proteins attract phagocytes to a pathogen by _____.
chemotaxis
When you are exposed to disease by coming into contact with someone else who has the disease ______ occurs.
naturally acquired active immunity
Your body has two types of immune responses that can defend against disease and include
innate immunity and adaptive immunity
____ interfere with viral replication and diffuse from one cell to another rending the receiving cells resistant to invading virus.
interferon
Which of the following statements is NOT true?
monocytes enlarge to become macrophages which always remain fixed in their locations
Which of the following is NOT part of the second line of innate immunity?
antigen-presenting cells
____ from blood become activated and poke holes in microbial membranes causing them to undergo cytolysis.
compliment proteins
The intial response to HIV infection is a modest decline in the number of circulating
helper T cells
Which class of immunoglobulins make up 80% of the antibodies in the blood and the only class to cross the placenta from mother to fetus providing considerable immune protection to newborns?
IgG
A sever, life-threatening allergic reaction in which the airways constrict so much that the person has extreme difficulty breathing is called
anaphylactic shock
If microbes are released after an infected cell is killed
phagocytes kill the released microbes
An _____ is an antigen that evokes an hypersensitivity reaction
allergen
______ is directed against extracellular pathogens.
antibody-mediated immunity
Which of the following cells kill infected host cells by releasing granzymes that induce apoptosis?
cytotoxic T cells
____ are short peptides that kill microbes and attract other cells that participate in immune responses.
antimicrobial proteins
All of the ollowing are components o the second line of innate defense EXCEPT
sebum
Which of the following statements is TRUE concerning the first line of innate immunity?
urine washes microbes from urethra
A/an _____ is any substance that has the ability to provoke an immune response.
antigen
Which of the following is NOT true concerning the HIV virus?
if left untreated, people with HIV infections begin showing symptoms of AIDS within 10 to 12 months after initial exposure
Which o the following cells are capable of producing antibodies?
B lymphocytes
A cell infected by a virus will produce _____ that signal neighboring cells to produce this protein which interferes with viral replication.
interferons
______ is a unique (to each human unless you are an identical twin) set of proteins which help T cells and B cells distinguish your body's own cells and antigens from foreign cells and antigens.
major histocompatibility complex