Correct and rewrite the statements by changing the biological term that is underlined for each statement:
The part of the eye which can be donated from a clinically dead person is the RETINA.
Topic: Cornea
Answer
The part of the eye which can be donated from a clinically dead person is the CORNEA.
The CORNEA is the transparent front portion of the sclera. It has NO BLOOD SUPPLY of its own — it is nourished by the aqueous humour — and this is precisely why it can be transplanted so successfully: with no blood vessels, there is little risk of the recipient’s immune system rejecting it.
The RETINA cannot be donated. It is nervous tissue, connected directly to the brain by the optic nerve, and nerve cells do not regenerate or reconnect.
This is the biological reason behind EYE DONATION, which is strictly speaking CORNEA donation — a point worth knowing, since examiners like questions that connect biology to public health.