Given below are two sets (a) and (b) of five parts in each. Rewrite them in correct sequence. (a) Cochlea, tympanum, auditory canal, ear ossicles, oval window. (b) Conjunctiva, retina, cornea, optic nerve, lens.
From the terms given below choose the parts that are involved in maintaining equilibrium in the body.
Eustachian tube, saccule, cochlea, utricle, vestibular nerve, cerebellum, oval window, semicircular canal
(a) Draw a labelled diagram of the human eye. Label the following parts on this diagram: Cornea, Iris, Pupil, Ciliary muscles, Eye-lens, Retina, Optic nerve and Blind spot.
(b) What are the functions of the following parts of the eye?
(i) Iris (ii) Eye-lens (iii) Ciliary muscles (iv) Retina (v) Optic nerve
Find the odd one out.
Cornea, Cochlea, Lens, Optic nerve