What is ‘Hilus’?
Answer – Hilus is an older version of the anatomical term ‘hilum’, which refers to the indentations in organs marking the point of their attachment to nerves, ducts, blood vessels, etc.
Explanation:
The hilus or hilum is the point on an organ where it “opens” or is attached to tubes, nerves, ducts, blood vessels etc. This is particularly noticeable in organs such as the lungs and kidneys.
In plants, similar indentations are present on seeds, marking the point at which they were attached to the ovary in the flower.
