Question 1

Specificity and memory are associated with which body defense mechanism?

Accepted Answer

A)   Inflammatory response
B)   Phagocytosis by macrophages and neutrophils
C)   Interferon
D)   T-cell and B-cell responses
E)   Anatomical barriers in the body

Question 2

The membrane attack stage of the complement cascade involves

Accepted Answer

A)   initiation of the cascade.
B)   production of inflammatory cytokines.
C)   the assembly of a ring-shaped protein that forms holes in bacterial cell membranes and virus envelopes.
D)   cleaving of C3 to yield C3a and C3b.
E)   C1q binds to surface receptors on a membrane.

Question 3

Joan's inflamed and painful joints are likely due to which of the following chemicals?

Accepted Answer

A)   gamma interferon
B)   interleukin-5
C)   prostaglandins
D)   histamine
E)   platelet-activating factor

Question 4

All of the following can be recognized by toll-like receptors, except

Accepted Answer

A)   single-stranded viral RNA.
B)   flagellin.
C)   host cell membrane proteins.
D)   lipoteichoic acid.
E)   lipopolysaccharide.

Question 5

The _____ region of a lymph node has germinal centers packed with T and B-lymphocytes.

Accepted Answer

The answer of The _____ region of a lymph node...

Question 6

If a splinter of wood were to enter the skin and introduce microorganisms to that site, what specific early and late events of inflammation would respond to that newly infected tissue? Describe the sequence of signs and symptoms, vascular and tissue events, and cells and mediators involved.

Accepted Answer

When a splinter of wood enters the skin ...

Question 7

The most numerous WBCs, that have multilobed nuclei and are very phagocytic are

Accepted Answer

A)   basophils.
B)   eosinophils.
C)   neutrophils.
D)   monocytes.
E)   lymphocytes.

Question 8

Dermacidin is an antimicrobic peptide secreted by skin cells, which breaks down bacterial membranes and causes them to lyse.

Accepted Answer

A) True 
 B)False

Question 9

The body region where a ciliary escalator helps to sweep microbes trapped in mucus away from that body site is the

Accepted Answer

A)   skin.
B)   respiratory tract.
C)   digestive tract.
D)   urinary tract.
E)   eyes.

Question 10

The reticuloendothelial system

Accepted Answer

A)   is a support network of connective tissue fibers.
B)   originates in the cellular basal lamina.
C)   provides a passageway within and between tissues and organs.
D)   is heavily populated with macrophages.
E)   All of these choices are correct.

Question 11

Genetic differences among species, and within a species, can convey genetic immunity to certain diseases.

Accepted Answer

A) True 
 B)False

Question 12

The lymphoid tissues of the intestinal tract are collectively referred to as

Accepted Answer

A)   lymph nodes.
B)   thymus.
C)   spleen.
D)   GALT.
E)   tonsils.

Exam 14: An Introduction to Host Defenses and Innate Immunities

If a splinter of wood were to enter the skin and introduce microorganisms to that site, what specific early and late events of inflammation would respond to that newly infected tissue? Describe the sequence of signs and symptoms, vascular and tissue events, and cells and mediators involved.

Correct Answer
Answered by ExamLex AI
When a splinter of wood enters the skin ...
View Answer

The body region where a ciliary escalator helps to sweep microbes trapped in mucus away from that body site is the

Correct Answer
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The reticuloendothelial system

Correct Answer
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The _____ region of a lymph node has germinal centers packed with T and B-lymphocytes.

Correct Answer
verified

The lymphoid tissues of the intestinal tract are collectively referred to as

Correct Answer
verified

The most numerous WBCs, that have multilobed nuclei and are very phagocytic are

Correct Answer
verified

Genetic differences among species, and within a species, can convey genetic immunity to certain diseases.

Correct Answer
verified

Specificity and memory are associated with which body defense mechanism?

Correct Answer
verified

All of the following can be recognized by toll-like receptors, except

Correct Answer
verified

Joan's inflamed and painful joints are likely due to which of the following chemicals?

Correct Answer
verified

The membrane attack stage of the complement cascade involves

Correct Answer
verified

Dermacidin is an antimicrobic peptide secreted by skin cells, which breaks down bacterial membranes and causes them to lyse.

Correct Answer
verified

Exam 14: An Introduction to Host Defenses and Innate Immunities

If a splinter of wood were to enter the skin and introduce microorganisms to that site, what specific early and late events of inflammation would respond to that newly infected tissue? Describe the sequence of signs and symptoms, vascular and tissue events, and cells and mediators involved.

Correct AnswerAnswered by ExamLex AIWhen a splinter of wood enters the skin ...View AnswerShow Answer

The body region where a ciliary escalator helps to sweep microbes trapped in mucus away from that body site is the

Correct AnswerverifiedShow Answer

The reticuloendothelial system

Correct AnswerverifiedShow Answer

The _____ region of a lymph node has germinal centers packed with T and B-lymphocytes.

Correct AnswerverifiedShow Answer

The lymphoid tissues of the intestinal tract are collectively referred to as

Correct AnswerverifiedShow Answer

The most numerous WBCs, that have multilobed nuclei and are very phagocytic are

Correct AnswerverifiedShow Answer

Genetic differences among species, and within a species, can convey genetic immunity to certain diseases.

Correct AnswerverifiedShow Answer

Specificity and memory are associated with which body defense mechanism?

Correct AnswerverifiedShow Answer

All of the following can be recognized by toll-like receptors, except

Correct AnswerverifiedShow Answer

Joan's inflamed and painful joints are likely due to which of the following chemicals?

Correct AnswerverifiedShow Answer

The membrane attack stage of the complement cascade involves

Correct AnswerverifiedShow Answer

Dermacidin is an antimicrobic peptide secreted by skin cells, which breaks down bacterial membranes and causes them to lyse.

Correct AnswerverifiedShow Answer

Correct Answer
Answered by ExamLex AI
When a splinter of wood enters the skin ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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