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Hypersensitivity responses result in:

A.

Autoimmune diseases

B.

Degranulation

C.

Allergic diseases

D.

Deficiency syndromes

Answer and Explanation

The Correct Answer is C

A. Autoimmune diseases involve inappropriate immune responses but are not classified solely as hypersensitivity reactions.

B. Degranulation refers to the release of substances from immune cells, often a part of hypersensitivity reactions, but does not encapsulate the full scope of their consequences.

C. Allergic diseases are directly caused by hypersensitivity responses, which occur when the immune system reacts excessively to harmless substances.

D. Deficiency syndromes relate to a lack of immune function or components, not the excessive responses seen in hypersensitivity reactions.


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Related Questions

Correct Answer is A

Explanation

A. Scar tissue serves to restore structural integrity to damaged areas, providing a scaffold for tissue repair, though it does not have the same functionality as the original tissue.

B. Secondary intention refers to the healing process of wounds that are not closed (such as ulcers or infected wounds), not the purpose of scar tissue.

C. Primary intention involves healing with minimal tissue loss (e.g., surgical wounds), and while scar tissue may form, the main purpose is not to restore it.

D. Metaplasia refers to the transformation of one cell type to another, not the formation of scar tissue.

Correct Answer is B

Explanation

A. Apoptosis refers to programmed cell death, which is a controlled process rather than a direct consequence of infection and blood flow issues.

B. Necrosis occurs when there is unregulated cell death due to injury or lack of blood flow, often resulting from infection or inflammation leading to tissue damage.

C. Cellular adaptation refers to changes that occur in cells in response to stress or injury but does not encompass the direct consequences of infection and impaired blood flow.

D. Cellular damage can occur as a result of necrosis or other processes, but in the context of infection and blood flow issues, necrosis is the more definitive outcome.

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