Fq120 · MRCS A

Fq120

During the second (proliferative) phase of wound healing the predominant cells in the wound site are fibroblasts. This cell is of mesenchymal origin and produces the matrix and collagen needed to strengthen the scar. Cross linkage of collagen requires hydroxy-proline and hydroxy-lysine residues, which requires a specific vitamin to be available in sufficient quantities. Deficiency of which vitamin results in collagen that is unstable?

a. Vitamin B2 (riboflavine)

b. Vitamin B6 (pyridoxine)

c. Vitamin C (ascorbic acid)

d. Vitamin D (cholecalciferol)

e. Vitamin E (tocopherol)

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Fq120