Question

Redness of skin caused by dilation of superficial blood vessels in the skin known as:

A. Suppuration
B. Inflammation
C. Erythema
D. Hypoxia

Answer 1

Erythema is the redness of the skin caused by dilation of superficial blood vessels during the body's inflammatory response to infection or injury.

Step-by-step explanation:

The redness of skin caused by the dilation of superficial blood vessels is known as erythema. This reaction typically occurs as part of the inflammatory response of the body to infections or injuries. Inflammation facilitates increased blood flow to the affected area due to the dilation, or expansion, of blood vessels. This process brings more blood to the site of injury, causing redness and warmth. Chemicals released during tissue damage consequently attract white blood cells, like neutrophils, which pass through the vessel walls into the damaged tissues to fight infection.

Answer 2

The redness of the skin caused by the dilation of superficial blood vessels during an inflammatory response is called: c) erythema.

Step-by-step explanation:

The redness of the skin caused by the dilation of superficial blood vessels is known as erythema. This condition is often a response to inflammation, indicating an increase in blood flow to the affected area to promote healing. In the context of the given options—suppuration, inflammation, erythema, and hypoxia—the correct answer is C. Erythema.

When the skin or other tissues are damaged, the body's second line of defense includes an inflammatory response, releasing chemicals that cause nearby blood vessels to dilate. This process results in increased blood flow, which contributes to redness and warmth, a phenomenon referred to as erythema. This is distinct from suppuration, which involves the production of pus, and hypoxia, which is a deficiency in the amount of oxygen reaching the tissues.