Chapter 3 Integumentary System Flashcards

Learn about types of Chapter 3 Integumentary System and Primary, Secondary, and Other Lesions with our flashcards. Learn key terms, words, definitions, and much more with our flashcard quizzes. Attempt these simple quizzes for types of Chapter 3 Integumentary System with ease and grow.

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Lesion
An area of pathologically altered tissue; the two types are primary and secondary
Primary lesions
Lesions arising from previously normal skin
Macule or macula (primary)
A flat, discolored spot on the skin up to 1 cm across (e.g., a freckle)
Patch (primary)
A flat, discolored area on the skin larger than 1 cm (e.g., vitiligo)
Papule (primary)
A solid mass on the skin up to 0.5 cm in diameter (e.g., a nevus [mole])
Plaque (primary)
A solid mass greater than 1 cm in diameter and limited to the surface of the skin
Nodule (primary)
A solid mass greater than 1 cm that extends deeper into the epidermis
Tumor (primary)
A solid mass larger than 1-2 cm
Wheal (primary)
An area of localized skin edema
Vesicle (primary)
Little bladder; an elevated, fluid-filled sac (blister) within or under the epidermis up to 0.5 cm in diameter (e.g., a fever blister)
Bulla (primary)
A blister larger than 0.5 cm (e.g., a second-degree burn) (meaning = bubble)
Pustule (primary)
A pus-filled sac (e.g., a pimple)
Secondary lesions
Lesions that result in changes in primary lesions
Erosion (secondary)
Gnawed away; loss of superficial epidermis, leaving an area of moisture but no bleeding (e.g., area of moisture after rupture of a vesicle)
Ulcer (secondary)
An open sore on the skin or mucous membrane that can bleed and scar; sometimes accompanied by infection