(c) medulla oblongata
     (d) spinal cord
Ans: (a)
208. The cavities of the brain are filled with
     (a) Blood
     (b) Lymph
     (c) Water
     (d) Cerebrospinal fluid
Ans: (d)
209. The part of the human brain concerned with sight is the
     (a) Frontal lobe
     (b) Parietal lobe
     (c) Temporal lobe
     (d) Occipital lobe
Ans: (d)
210. The part of the eye behind the lens is filled with
     (a) aqueous humor
     (b) vitreous humor
     (c) lymph
     (d) blood
Ans: (b)
211. The tear glands help us in
     (a) sobbing
     (b) protecting the eye
     (c) preventing dust
     (d) providing a clean moist surface
Ans: (d)
212. The external ears of man are intended for
     (a) ornaments
     (b) scattering sound waves
     (c) collect sound waves
     (d) beauty
Ans: (b)
213. Phonoreceptor refers to the perception of
     (a) light
     (b) sound
     (c) touch
     (d) smell
Ans: (b)
214. Eye is an organ that can be called as
     (a) Phonoreceptor
     (b) Thigmoreceptor
     (c) Photoreceptors
     (d) Rheoreceptor
Ans: (c)
215. Colour vision is made possible by the cells in the retina called
     (a) rods
     (b) cones
     (c) fovea
     (d) blind spot
Ans: (b)
216. The hormone that contains iodine is
     (a) Prolactin
     (b) Vasopressin
     (c) Thyroxine
     (d) Adrenalin
Ans: (c)
217. The blood pressure is controlled by the hormone
     (a) Vasopressin
     (b) Oxytocin
     (c) Oestrogen