Sense Organs Welcome to your Sense Organs 1. Which of the following is true about retina? Innermost layer Sensitive to light Contains rods and cones All of the above2. The sequence of ear ossicles of vertebrates starting from the tympanum is Malleus, incus, stapes Incus, malleus, stapes Stapes, malleus, incus Stapes, incus, malleus3. The defect of vision in which the image of nearby objects is formed behind the retina is Hypermetropia Short- sightedness Myopia Presbyopia4. The median cochlear canal of inner ear is filled with Otolymph Perilymph Endolymph Cystolymph5. Aqueous humour is present between the Cornea and lens Iris and lens Lens and retina Cornea and iris6. The photoreceptor cells of the retina sensitive to colour are Pupil Cones Rods Organ of corti7. Which part of our ear is shaped like a snail shell? Cochlea Semi-circular canals Stapes Eustachian tube8. The defect of vision in which a person cannot see the distant objects clearly but can see nearby objects clearly is called Presbyopia Myopia Hypermetropia Bifocal eye9. The defect of the eye in which the eye ball becomes too long is Cataract Presbyopia Myopia Hypermetropia10. The parts of the human ear concerned with hearing are Eustachian tube, tympanum and utriculus Semicircular canals, utriculus and sacculus Cochlea, ear ossicles and tympanum Perilymph, ear ossicles and semicircular canals11. Find the incorrect match Rod cells - rhodopsin Blind spot - no vision Yellow spot - blurred vision Cone cells - iodopsin12. Find the correct statement about the eustachian tube. Connects internal ear to external ear Equalises pressure between middle ear and outer atmosphere and also connects middle ear to pharynx it equalises pressure between middle aer and outer atmosphere Connects middle ear to pharynx13. The part of the human eye where rod cells and cone cells are located is the Retina Sclera Cornea Choroid14. Which part of the eye is grafted in a needy patient from a donated eye? Cornea Ciliary muscles Choroid Conjunctiva15. What type of image is formed by the eye lens on the retina? Real and inverted Real and erect Virtual and erect Virtual and inverted16. The aperture in the eye through which light enters is the Ciliary muscles Conjunctiva Pupil Choroid17. Find the incorrect match Middle ear - amplifies sound waves CRistae - perform hearing function Saccule and utricule - maintain static equilibrium Sensory hair cells - Present on basilar membrane18. The vestibular and tympanal canal of inner ear is filled with Otolymph Perilymph Cystolymph Endolymph19. The medical condition in which the lens of the eye of a person becomes progressively cloudy resulting in blurred vision is called Myopia Hypermetropia Cataract Presbyopia20. The number of spinal nerves in a human being are 21 pairs 31 pairs 30 pairs 10 pairs21 out of 20Please fill in the comment box below.
