Question

Arrange the ganglia of autonomous nervous system of cockroach in correct sequence from anterior to posterior end.

• A. Frontal ganglion, Hypocerebral ganglion, Visceral ganglion, Proventricular ganglion
  
• B. Proventricular ganglion, Frontal ganglion, Hypocerebral ganglion, Visceral ganglion
  
• C. Hypocerebral ganglion, Visceral ganglion, Frontal ganglion, Proventricular ganglion
  
• D. Visceral ganglion, Proventricular ganglion, Frontal ganglion, Hypocerebral ganglion
  

Answer 1

The correct option is A Frontal ganglion, Hypocerebral ganglion, Visceral ganglion, Proventricular ganglion


The autonomous system includes 4 nerve ganglia and nerves which connect them and supply to visceral organs. The nerve ganglia in order from anterior to posterior end are as:

1. Frontal ganglion: It is present on pharynx, just in front of the brain.
   
2. Occipital ganglion or hypocerebral ganglion: It is present behind the brain and above the oesophagus.
   
3. Visceral ganglion: It is present on the wall of the crop
   
4. Proventricular ganglion: It is present on the gizzard.
   Thus, the correct answer is option (A).