ജീവശാസ്ത്രത്തിലെ കണ്ണ്, ചെവി എന്നിവയുമായി ബന്ധപ്പെട്ട ചോദ്യങ്ങളാണ് ഇന്നത്തെ പാഠത്തിൽ.
- Study of eyes and eye diseases
Ophthalmology
- Outer layer of eyes
Schlera
- Middle layer of eyes
Choroid
- Inner layer of eyes
Retina
- Layer of eyes which supplies nutrition
Choroid
- Circular transparent front portion of eyes
Cornea
- Lens in eyes
Biconvex lens
- Image formed on the retina of eyes is
Real and inverted
- For normal eyes near point is
25 cm
- Thin covering that protects cornea
Conjunctiva
- Curtain like partition behind cornea
Iris
- Opening at the centre of Iris
Pupil
- Portion that controls the light enters eye
Pupil
- Which is regulating the size of pupil in eyes
Iris
- Light sensitive layers are present in which layer
Choroid
- Ability of eye lens to adjust its focal length is known as
Power of accommodation
- Cells responsible for dim light vision
Rods
- Cells responsible for Bright light vision and color vision
Cone cells
- Owls cannot see during daytime due to the absence of
Cone cells
- Point where no rod and cone cells are present and no image formation happening
Blind spot
- Name of the pigment that helps to see in dim light
Rhodopsin
- Light sensitive pigment of rod cells
Rhodopsin
- Light sensitive pigment of cone cells
Iodopsin
- Jelly like substance filled in between lens and retina
Vitreous humor
- Fluid filled in between Iris and cornea
Aqueous humor
- Focal length of the lens is adjusted by\ligments that hold the lens in place
Ciliary body
- Tear producing glands in eye
Lachrymal gland
- Enzyme present in tears
Lysozyme
- Eye transplantation surgery includes
Cornea, Schlera and vitreous humor
- Cornea transplantation surgery is known as
Keratoplasty
- Short sight is also known as
Myopia
- In case of Myopia, the image is formed at
In front of the retina
- Long sight is also known as
Hypermetropia
- In case of Hypermetropia, the image is formed at
Behind the retina
- Presbyopia is caused by
eduction in the elasticity of the lens
- Situation in which image is not clearly formed due to the irregular curvature of cornea
Astigmatism
- Squint eyes can be corrected by
Eye surgery
- Myopia can be corrected with
Concave lens
- Hypermetropia can be corrected with
Convex lens
- Both Myopia and hypermetropia can be corrected with
Bifocal lens
- Astigmatism can be corrected with
Cylindrical lens
- Color blindness was discovered by
John Dalton
- Person suffering from Color blindness unable to distinguish
Red and Green colors
- Eye diseases that occur due to the deficiency of Vitamin A
Night blindness and Xerophthalmia
- Loss of vision in dim lights is called
Night blindness
- Eye diseases that occur when iris become dry and opaque is called
Xerophthalmia
- Clouding of eyes due to aging
Cataract
- Eye diseases due to the increased pressure in the eyeball
Glaucoma
- Inflammation or infection of conjunctiva is called
Conjunctivitis or red eyes or Madras eye
- Organ which maintains the balance of the body
Ear
- Part of the ear which helps to hear
Cochlea
- Semicircular canals, Vestibules, Pharynx etc are parts of
Ear
- Part of ear which has the shape of snail shell
Cochlea
- Instrument used for examining outer eardrum
Otoscope
- Hammer shaped bone in ear
Malleus
- Anvil shaped bone in ear
Incus
- Stirrup-shaped bone in ear
Stapes
- Smallest bone in the human body
Stapes
(To be Continued…)