In earthworms,the nervous system is composed | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The nervous system of the earthworm $(Pheretima)$ is essentially represented by ganglia arranged segment-wise on the ventral paired nerve cord.$1$

Vedclass · Accepted Answer

Cerebral ganglia and a double ventral nerve cord

Vedclass · Answer

(A) The nervous system of the earthworm $(Pheretima)$ is essentially represented by ganglia arranged segment-wise on the ventral paired nerve cord.$1$. The nerve cord in the anterior region (3rd and 4th segments) bifurcates,laterally encircling the pharynx and joins the cerebral ganglia dorsally to form a nerve ring.$2$. The cerebral ganglia,along with other nerves in the ring,integrate sensory input and command muscular responses.$3$. Therefore,the nervous system consists of cerebral ganglia and a double ventral nerve cord.

In earthworms,the nervous system is composed of which of the following?

Similar Questions

The small longitudinal slit-like aperture present in the $Pygidium$ is known as:

The figure below shows the circulatory system of an earthworm. What are $P, Q$,and $R$?

In earthworms,where is hemoglobin found?

Give scientific reasons: Earthworm is known as farmer's friend.

What is the typical life span of an Earthworm?

Vedclass Test Series

Exam Paper Generator

Online Exam Module