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Which statement accurately defines psoriasis?

A.

Psoriasis is an autoimmune disease that primarily affects the respiratory system.

B.

Psoriasis is a bacterial skin infection caused by Streptococcus bacteria.

C.

Psoriasis is a chronic inflammatory skin condition characterized by red, scaly patches.

D.

Psoriasis is a type of skin cancer that arises from melanocytes.

Answer and Explanation

The Correct Answer is C

Explanation: Psoriasis is a chronic skin disorder that results from an overactive immune response, leading to the rapid growth of skin cells. This causes red, raised, and scaly patches to form on the skin, which can be itchy and painful.

Incorrect choices: a. Psoriasis is not primarily an autoimmune disease affecting the respiratory system. It is primarily a skin condition, although it may be associated with certain autoimmune factors.

b. Psoriasis is not caused by a bacterial infection. It is a non-infectious skin disorder with an underlying immune-mediated mechanism.

d. Psoriasis is not a type of skin cancer. It is a benign skin condition that does not involve the malignant transformation of melanocytes.


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Related Questions

Correct Answer is C

Explanation

Explanation: Psoriasis is believed to have a genetic component, and it is considered an autoimmune disorder where the immune system mistakenly attacks healthy skin cells, leading to the characteristic skin changes.

Incorrect choices: a. Poor hygiene and lack of skin care - Psoriasis is not caused by poor hygiene or lack of skin care.

b. Exposure to environmental toxins - While environmental factors may trigger or worsen psoriasis in some individuals, they are not the primary cause of the condition.

d. Excessive sun exposure - Sun exposure may improve psoriasis symptoms in some people, but it is not the underlying cause of the condition.

Correct Answer is C

Explanation

Explanation: Psoriasis is not contagious and cannot be spread through direct contact with affected individuals. It is an autoimmune disease where the immune system mistakenly attacks healthy skin cells, leading to the characteristic red, scaly patches on the skin.

Incorrect choices: a. This statement is correct. Psoriasis is a chronic skin condition that causes red, scaly patches on the skin.

b. This statement is correct. Psoriasis is indeed an autoimmune disease where the body's immune system attacks healthy skin cells.

d. This statement is correct. Treatment for psoriasis aims to reduce inflammation and slow down the rapid skin cell growth to manage the symptoms of the condition.

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