Which is a function of the skin?

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Prepare for the VetSkill Level 3 Diploma VN03 - Principles of Veterinary Nursing Care 1 Test. Review essential topics with flashcards and multiple choice questions, complete with hints and detailed explanations. Ensure your success with focused study sessions!

Multiple Choice

Which is a function of the skin?

Explanation:
Vitamin D synthesis is a function of the skin because keratinocytes contain 7-dehydrocholesterol, which is converted to vitamin D3 (cholecalciferol) when the skin is exposed to UVB radiation. This vitamin then travels to the liver and kidneys for activation, supporting calcium and phosphorus balance important for bone health. The other options involve processes that occur outside the skin: blood clotting factors are produced mainly by the liver and circulate in the blood; hormone secretion comes from endocrine glands; and oxygen transport is handled by red blood cells in the circulatory system.

Vitamin D synthesis is a function of the skin because keratinocytes contain 7-dehydrocholesterol, which is converted to vitamin D3 (cholecalciferol) when the skin is exposed to UVB radiation. This vitamin then travels to the liver and kidneys for activation, supporting calcium and phosphorus balance important for bone health. The other options involve processes that occur outside the skin: blood clotting factors are produced mainly by the liver and circulate in the blood; hormone secretion comes from endocrine glands; and oxygen transport is handled by red blood cells in the circulatory system.

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