Subject :NSO Class : Class 3
It is the hardest substance of our body. It is X.
It is soft and bears blood vessels and nerves. It is Y.
Which is true about X and Y?
AX is pulp and Y is dentine
BX is enamel and Y is pulp
CX is enamel and Y is dentine
DX is pulp and Y is enamel
check diagram pulp contains nerves and blood vesselsor in wikipedia or encyclopedia
Ans 1:
Class : Class 3
The hardest substance found in our body is Enamel so X is Enamel. The pulp in our teeth is soft and bears blood vessels and nerves so Y is Pulp.
Ans 2:
Class : Class 3
The hardest substance in our body is Enamel, so X is Enamel. The Pulp in our teethis soft and bears blood vessels and nerves, so Y is Pulp. Hence the answer is B.
Ans 3:
Class : Class 3
Pulp cavity