United States or United Arab Emirates ? Vote for the TOP Country of the Week !
Hence, as a result of constant exercise, or selection, or both, the nerve-plexus has thickened at this point into a little compact mass of cells and fibres called a ganglion. And because this ganglion throughout higher forms usually lies over the oesophagus, it is called the supra-oesophogeal ganglion.
Word Of The Day