What are the characteristic features of cheilosis related to riboflavin deficiency?

Cheilosis, often associated with riboflavin deficiency, is characterized by swollen lips and cracks in the corners of the mouth, also known as angular cheilitis. This condition occurs when there is inadequate riboflavin intake, which is crucial for various metabolic processes in the body, including maintaining healthy skin and mucous membranes. Riboflavin plays a significant role in the maintenance of cellular health, and its deficiency can lead to impaired function of the tissues in the oral cavity, resulting in inflammation and the cracking of the skin at the corners of the mouth.

This symptom is particularly indicative of riboflavin deficiency because other micronutrient deficiencies may present differently or affect other parts of the body more prominently, whereas cheilosis is a distinctive hallmark of this specific nutrient deficiency. Therefore, the features described in the correct answer accurately represent the oral manifestations resulting from a lack of riboflavin in the diet.