HomeMock TestState PCSRailwaySSCHSSCDSSSBRO/AROUPSC

Nervous System

📆 November 5, 2024

Total Questions: 39

31. The outer white part of the eye, which protects the internal structures, is: [S.S.C. Online CHSL (T-1) 31.01.2017 (Shift-III)]

Correct Answer: (b) Sclera
Solution:The sclera is commonly referred to as the “whites” of the eye. This is a smooth, white layer on the outside, but the inside is brown and contains grooves that help the tendons of the eye attach properly. The sclera provides structure and safety for the inner workings of the eye but is also flexible so that the eye can move to seek out objects as necessary.

32. What do you call the transparent front part of the eye? [S.S.C. Online MTS (T-I) 11.10.2021 (Shift-I)]

Correct Answer: (d) Cornea
Solution:The cornea is the clear, transparent, outermost layer of the eye that covers the iris, pupil, and anterior chamber. It plays a crucial role in focusing light onto the retina.

33. In which part of the human body will you find the 'superior rectus'? [S.S.C. Online C.H.S.L. (T-I) 15.04.2021 (Shift-II)]

Correct Answer: (b) Eye
Solution:The superior rectus is one of the six extrinsic muscles that control the movement of the eyeball. These muscles are responsible for moving the eye in various directions (up, down, side to side, and rotation).

34. Which of the following diseases damages the eye’s optic nerve and results in vision loss and blindness and occurs when the normal fluid pressure inside the eyes slowly rises? [S.S.C. Online C.H.S.L. (T-I) 11.08.2021 (Shift-II)]

Correct Answer: (d) Glaucoma
Solution:Glaucoma is a group of eye conditions that damage the optic nerve, often caused by abnormally high pressure inside the eye (intraocular pressure). If left untreated, it can lead to irreversible vision loss and blindness.

35. Conjunctivitis is an infection primarily related to: [S.S.C. Online CPO S.I. (T-I) 23.11.2020 (Shift-I)]

Correct Answer: (c) Eye
Solution:Conjunctivitis, commonly known as "pink eye," is an inflammation or infection of the conjunctiva, the transparent membrane that lines the eyelid and covers the white part of the eyeball.

36. _____ glands release tears from our eyes. [S.S.C. Online C.H.S.L. (T-I) 11.08.2021 (Shift-III)]

Correct Answer: (c) Lacrimal
Solution:The tear glands (lacrimal glands), located above each eyeball, continuously supply tear fluid that’s wiped across the surface of your eye each time you blink your eyelids. Excess fluid drains through the tear ducts into the nose.

37. When we see an object, the image formed on the retina is: [S.S.C. Online Graduate Level (T-I) 2.09.2016 (Shift-III)]

Correct Answer: (a) Real and inverted
Solution:The lens of the human eye acts as a convex lens. Convex lenses form real and inverted images. The brain then processes this inverted image and perceives it as erect.

38. When humans see an object, its inverted, real image is formed on the: [S.S.C. JE Electrical Exam 28.01.2020 (Shift-I)]

Correct Answer: (c) Retina
Solution:Since our eye lens is biconvex lens of varying focal length. Hence, the image formed at the retina is real and inverted. The signal reaches the brain via the optic nerve. It is the brain that interprets this image and, while processing the image, it helps in perceiving objects as they are. The image formed on the retina is inverted.

39. Which of the following is a delicate membrane having an enormous number of light-sensitive cells in the human eye? [S.S.C. JE Civil Exam 30.01.2020 (Shift-I)]

Correct Answer: (a) Retina
Solution:The retina is a thin, delicate layer of tissue at the back of the eye that contains millions of light-sensitive cells (photoreceptors: rods and cones) and other nerve cells. These cells convert light into electrical signals, which are then sent to the brain via the optic nerve.
Home  | Mock Test  | State PCS  | Railway  | SSC  | HSSC  | DSSSB  | RO/ARO  | UPSC  | 
© 2024 Mock Test 365 | All Rights Reserved