Morphological and histological study for some sensory organs in common carp(Cyprinus carpio l.)‎

الملخص EN

A total of fifty specimens of common carp Cyprinus carpo L.

were obtained to study the olfactory Organs, lateral line canal and the neuromasts .common carp has one pair of nostrils in each side of the head, Olfactory organ has an oval shape with 28 olfactory lamella arranged inside the nasal pouch and has a finger-like shaped.

Every lamella contains sensory, supporting and basal cells.

In addition to six cephalic canals in the lateral line at the head, there was a trunk canal that extends at the same line until the caudal peduncle, the trunk lateral line canal posses 35 scales .There are two types of neuromasts, the external neuromasts that aggregated around the eyes ,upper jaw and lower jaw.

In addition to the external neuromasts there are pit organ, the neuromasts consists of two layers of cells, the supporting and the sensory cell layer.

At the external neuromasts and pit organ there was the cupulae which absent at the neuromast of lateral line.