State the functions of the following:
(i) Semi-circular canals
Which part of our ear is shaped like a snail shell ? (a) Semi-circular canals (b) Cochlea (c) Stapes (d) Eustachian tube
State whether the following statements are true (T) or false (F). If false, correct them by changing any one single word in each.
(a) Deafness is caused due to rupturing of the pinna. (T/F)
(b) Semi circular canals are concerned with static (positional) balance. (T/F)
The organ of corti is a structure present in
(a) external ear (b) middle ear
(c) semi-circular canal (d) cochlea
Differentiate between members of each of the following pairs with reference to what is asked in brackets. (a) Myopia and hyperopia (Cause of the defect) (b) Rods and cones (Sensitivity) (c) Semi-circular canal and cochlea (Function) (d) Rod and cone cells (Pigment contained) (e) Dynamic balance and static balance (Definition)