Question

The vascular layer of the eye is
a) Choroid
b) Sclera
c) Cornea
d) Retina

Answer 1

The eye is a sensitive organ present in every organism. It helps the organism to see its surroundings and move accordingly. The eye has a tear layer present on it which helps in its lubrication. The absence of a tear layer may cause irritation in the eye as it can dry up easily.

Complete answer:
The eye can be divided into fibrous, vascular, and inner layers according to its anatomy. The fibrous layer of an eye is the outermost layer which is made up of sclera and cornea. Below the fibrous layer lies the vascular layer. The vascular layer is made up of the choroid, ciliary body, and iris. The choroid is the layer of connective tissue that is present in order to perform the function of providing nourishment to the outer layers of the retina. The ciliary body present in the vascular layer helps in controlling the shape of the lens present in the eye. The iris is a small circular structure that is present to control the diameter of the pupil.
-Sclera is a part of the fibrous layer of the eye. It is the white part of the human eye which is easily visible. It is present to help in the movement of the eye.
-Cornea is also a part of the fibrous layer of the eye. Its role is to refract the light entering the eye. It is transparent in nature.
-Retina is the component that helps in the detection of the color. It is present in the inner layer of the eye. The retina can be further divided into an outer pigmented layer and a neutral inner layer.

So, the correct answer is ‘choroid’.

Note:
The eye has three layers present in it which are the outer fibrous layer, a middle vascular layer, and an inner layer. These layers have different roles and help in providing the vision. The vascular layer not only contains the choroid but also has the presence of the ciliary body and iris.