Tiny structures releasing lipids in the skin.

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Multiple Choice

Tiny structures releasing lipids in the skin.

Lamellar bodies are the specialized lipid‑rich organelles in keratinocytes that release lipids into the extracellular space to form the lipid barrier in the stratum corneum. They carry ceramides, cholesterol, and fatty acids and fuse with the cell membrane to exocytose their contents, creating the lamellar lipid sheets that keep the skin hydrated and protect against water loss. Melanosomes carry melanin, not lipids; peroxisomes handle metabolic reactions inside the cell; vesicles are general carriers but lamellar bodies are the specific lipid-releasing structures in the epidermal barrier.

Lamellar bodies are the specialized lipid‑rich organelles in keratinocytes that release lipids into the extracellular space to form the lipid barrier in the stratum corneum. They carry ceramides, cholesterol, and fatty acids and fuse with the cell membrane to exocytose their contents, creating the lamellar lipid sheets that keep the skin hydrated and protect against water loss. Melanosomes carry melanin, not lipids; peroxisomes handle metabolic reactions inside the cell; vesicles are general carriers but lamellar bodies are the specific lipid-releasing structures in the epidermal barrier.

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