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Multiple Choice
Which of the following is an example of a merocrine gland?
A
Sweat gland
B
Sebaceous gland
C
Mammary gland
D
Ceruminous gland
Verified step by step guidance
1
Understand the classification of glands based on their mode of secretion: Merocrine glands release their secretions via exocytosis without damaging the glandular cells. This is different from apocrine glands (which release part of the cell) and holocrine glands (where the entire cell disintegrates).
Review the function of sweat glands: Sweat glands are responsible for thermoregulation and excrete sweat through ducts to the surface of the skin. They use the merocrine mode of secretion, meaning their cells remain intact during secretion.
Compare sweat glands to other gland types: Sebaceous glands use holocrine secretion, where the entire cell disintegrates to release sebum. Mammary glands use apocrine secretion, releasing part of the cell along with milk. Ceruminous glands produce earwax and are classified differently.
Identify the correct example of a merocrine gland: Based on the secretion method, sweat glands are the correct example of merocrine glands.
Conclude that sweat glands are the correct answer because they utilize exocytosis to release their secretions without damaging the glandular cells.