Question

The part of the human eye which is sensitive to red, blue, and green light is:
A) Retina
B) Lens
C) Cornea
D) Iris

Answer 1

The eye's structure is crucial to comprehend since it is one of the most significant sensory organs in the human body. It is primarily responsible for vision, colour discrimination (the human eye can distinguish roughly 10 - 12 million colours), and the human body's circadian clock. The human eye and a camera are similar in that they both receive, focus, and transmit light through a lens to create an image of an object.

Complete answer:
The human eye is one of the most complex sensory organs in the body. Every component of the human eye, from muscles and tissues to nerves and blood arteries, is accountable for a certain action. Furthermore, contrary to common perception, the eye is made up of two distinct parts fused, rather than being completely spherical. It is made up of many muscles and tissues that produce an approximately spherical shape. The human eye may be divided into two categories from an anatomical standpoint: outward structure and interior structure.

The following are the internal components of an eye:
Lens: The lens of an eye is a clear, biconvex lens. Ligaments connect the lens to the ciliary body. The lens, in conjunction with the cornea, refracts light to concentrate it on the retina.

Retina: The retina is the eye's innermost layer. It is light-sensitive and functions as a camera film. There are three layers of neural cells in them: ganglion, bipolar, and photoreceptor cells. It transforms a picture into electrical nerve impulses that the brain may perceive. The retina is the eye's screen. The retina contains photoreceptors such as rods and cones. As a result, it is colour-sensitive.

Optic nerve: The ophthalmic nerve is found in the back of the eyes. All nerve impulses from the retina to the human brain are carried via the optic nerves, which are responsible for perception.

Aqueous Humour: Between the cornea and the lens is a watery fluid called aqueous humour. It nourishes and inflates the eyeball.

Vitreous Humour: Vitreous Humour is a jelly-like translucent fluid found between the lens and the retina. It is made of 98% water, collagen, proteins, and other ingredients. Vitreous humour’s primary role is to protect the eyes and maintain their spherical form.

Therefore the correct answer is option ‘A’.

Note: Green is the least frequent eye colour among the more common ones. Almost everyone has brown, blue, green, or somewhere in between eyes, with a few outliers. Other hues, like grey and hazel, are less popular.