Part of the reason for Scott’s acne is the overproduction of sebum. Scott’s init

Question

Part of the reason for Scott’s acne is the overproduction of sebum. Scott’s initial instinct is that shutting down production of sebum would be the quickest route to eliminating his acne; however, sebum actually plays an important role in maintaining the skin as a first line of defense against pathogens. Which of the following best describes the role of sebum as a component of the first line of defense?

Select all that apply.

Sebum helps to keep the pH of the skin low, which inhibits the growth of microorganisms. Sebum creates an anaerobic environment, thereby preventing the growth of pathogenic organisms. Sebum forms a protective layer over the skin. Sebum contains enzymes that inhibit the growth of pathogens.

Explanation / Answer

Answer) The role of sebum as a component of the first line of defense;

a) Sebum helps to keep the pH of the skin low, which inhibits the growth of microorganisms.

c) Sebum forms a protective layer over the skin.

Explanation - Sebum is a waxy/oily matter secreted by the exocrine sebaceous glands over the skin surface. In humans, it is composed of high 41% triglycerides content, nearly 26% wax esters, about 12% squalene and rest of 16% free fatty acids. it creates a protective layer over our skin surface. slightly acidic nature of sebum keeps the PH of the skin about 4.5-6.2. at this PH, the growth of microorganisms is inhibited.

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