What is the tongue, and what causes its rough structure?

زبان کیا ہے، اور اس کی کھردری ساخت کی کیا وجہ ہے؟

Gland, Taste buds

Muscular organ, Papillae

Nerve, Fissures

Muscular organ, Glands

The tongue is a muscular organ, and its rough structure is due to the presence of papillae.
It small projections that house taste buds and contain taste receptors.