Describe the parts of a human tooth with the help of a labelled diagram.

(N/A) The human tooth consists of the following main parts:
$1$. Enamel: It is the hard, outermost protective covering of the tooth.
$2$. Dentin: It is the layer present below the enamel, which forms the bulk of the tooth structure.
$3$. Pulp cavity: It is the central part of the tooth located inside the dentin. It contains nerves and blood vessels that provide nourishment and sensation to the tooth.
$4$. Gums: These are the soft tissues that surround and support the base of the tooth.