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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 B

Explanation

A. While E. coli is a common cause of urinary tract infections, pelvic inflammatory disease (PID) is typically associated with sexually transmitted infections, such as chlamydia and gonorrhea.

B. Pyuria, or the presence of pus in urine, is common in both urinary tract infections and PID due to the inflammatory response.

C. Although these conditions are more prevalent in females, urinary tract infections can also occur in males, so they are not exclusive to females.

D. While urinary tract infections can result from ascending infections, PID is often a result of infections spreading upward from the cervix into the reproductive organs.

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.

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