In this article we will discuss about the respiratory system of Channa Punctatus with suitable diagram. Respiration is performed by four pairs of gills, situated in the gill chambers, and accessory respiratory organs. These two chambers are covered externally by the operculum. A branchiostegal membrane is attached to the posterior margin of the operculum and helps the operculum to make [...]
The circulatory system of Channa Punctatus comprises of: (i) The circulatory fluid—the blood, (ii) The pumping organ—the heart, (iii) The arteries and (iv) The veins. (i) Blood: Blood is a pale-coloured fluid. It contains elliptical, nucleated erythrocytes and amoeboid leucocytes suspended in the plasma. (ii) Heart: Heart is located ventral to the oesophagus in the pericardial section of the coelom. [...]
The nervous system of Channa Punctatus comprises of the central nervous system, peripheral nervous system and the sympathetic nervous system. Central nervous system: This system includes the brain and the spinal cord. Brain: Brain (Fig. 1.56A-C) in Channa punctatus is well developed and remains covered with good amount of adipose tissue. The olfactory lobes and cerebral hemispheres are distinct. The [...]