Given below are sets of five terms each. Rewrite the terms in correct order in a logical sequence beginning with the first word that is underlined.
CONJUNCTIVA, Yellow spot, Pupil, Vitreous humor, Aqueous humor.
Topic: Path of light through the eye
Answer
Conjunctiva → Aqueous humor → Pupil → Vitreous humor → Yellow spot
This follows LIGHT from outside the eye to the point where the sharpest image is formed: CONJUNCTIVA — the thin transparent membrane over the front of the eye AQUEOUS HUMOR — the watery fluid in the chamber in FRONT of the lens PUPIL — the opening in the iris VITREOUS HUMOR — the jelly-like fluid BEHIND the lens YELLOW SPOT — the point of sharpest vision on the retina
THE TWO HUMOURS are what make this sequence tricky. Fix them by meaning: AQUEOUS is watery and lies in FRONT; VITREOUS is glassy and thick and lies BEHIND. Light meets the thin one first.
Note that the aqueous humour comes BEFORE the pupil, since it fills the space between the cornea and the iris.