Iris stroma and ciliary body stroma are derived from which embryonic tissue?

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Multiple Choice

Iris stroma and ciliary body stroma are derived from which embryonic tissue?

Explanation:
The iris stroma and ciliary body stroma come from neural crest-derived mesenchyme. During eye development, neural crest cells migrate into the developing eye and differentiate into ectomesenchymal tissue that forms much of the anterior segment’s connective tissue. This lineage gives rise specifically to the stromal connective tissue of the iris and the stroma of the ciliary body (including its supporting cells). In contrast, surface ectoderm forms the lens and corneal epithelium, mesoderm contributes to other structures like muscles and some vascular components, and endoderm does not contribute to these anterior segment tissues.

The iris stroma and ciliary body stroma come from neural crest-derived mesenchyme. During eye development, neural crest cells migrate into the developing eye and differentiate into ectomesenchymal tissue that forms much of the anterior segment’s connective tissue. This lineage gives rise specifically to the stromal connective tissue of the iris and the stroma of the ciliary body (including its supporting cells). In contrast, surface ectoderm forms the lens and corneal epithelium, mesoderm contributes to other structures like muscles and some vascular components, and endoderm does not contribute to these anterior segment tissues.

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