Name the part of the eye for each description…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
Name the part of the eye for each description.
- The transparent front part of the outer layer.
- The middle layer, which has many blood vessels.
- The pigmented ring that we see as the colour of the eye.
- The fluid that fills the space between the cornea and the lens.
- The gel that fills the space between the lens and the retina.
Need a reminder? The key ideaShow
The eyeball has three layers: the sclera (with the cornea), the choroid (with the ciliary body and the iris) and the retina. The lens is held by ligaments of the ciliary body. The aqueous humour lies in front of the lens, and the vitreous humour lies behind it. The retina has ganglion cells, bipolar cells and photoreceptor cells from inside to outside. The area of a circle is .
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. (a) The cornea.
Step 2. (b) The choroid.
Step 3. (c) The iris.
Step 4. (d) The aqueous humour, in the aqueous chamber.
Step 5. (e) The vitreous humour, in the vitreous chamber.
Answer: (a) cornea; (b) choroid; (c) iris; (d) aqueous humour; (e) vitreous humour.
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