Which anatomical structure of the human eye is suitable for transplantation?
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Answer: D. Cornea
Explanation
The cornea is the transparent front part of the eye and lacks blood vessels entirely. Avascular tissue like the cornea reduces immune rejection risks during surgical transplantation procedures. Nutrients for the cornea are supplied by tears and aqueous humor rather than a blood supply. Organ transplantation replaces damaged tissues with healthy donor tissue to restore vital functions. The human eye relies on the cornea to refract incoming light onto the crystalline lens. Medical eye banks carefully collect and store corneal tissue for sight-restoring surgeries.
Corneal transplant surgery has a high success rate and restores vision for millions of patients. Ophthalmologists perform keratoplasty procedures to treat corneal scarring, diseases, and injuries. Tissue donation awareness programs encourage people to register as corneal and organ donors. The conjunctiva is a mucous membrane covering the eye but is not a standard transplant tissue. The iris contains pigmented muscle tissue and blood vessels, making direct transplantation impractical. The pupil is merely an adjustable aperture opening rather than a solid transplantable tissue.
- Subject
- Everyday Science
- Category
- Everyday Science
- Topic
- —
- Difficulty
- medium
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