What is a Worms nervous system?

The nervous system of an earthworm is composed of a primitive brain of fused ganglia, a ventral nerve cord, and peripheral nerves. Impulses from the earthworm’s sensory cells are transmitted by the peripheral nerves to certain parts of the body and proper responsive movements are coordinated.

What type of nervous system exists in earthworm?

It has a central and peripheral nervous system. Its central nervous system consists of two ganglia above the mouth, one on either side, connected to a nerve running along its length to motor neurons and sensory cells in each segment….

What are the main functions of the nervous system?

The nervous system is the major controlling, regulatory, and communicating system in the body. It is the center of all mental activity including thought, learning, and memory. Together with the endocrine system, the nervous system is responsible for regulating and maintaining homeostasis.

Does earthworm have a brain?

In an earthworm, the ganglia essentially operate as the brain; however, it must be noted that these ganglia are distributed throughout the body of the earthworm. The singular of ganglia is ganglion. An earthworm is an annelid: a type of invertebrate whose body is segmented.

Do earthworms have organs?

Earthworms are hermaphrodites, their bodies contain both male and female reproductive organs. Earthworms don’t have lungs, but instead breathe through their skin as long as it stays moist. The slimy surface of the worm, actually allows the little creature to breathe.

What are the organs of an earthworm?

An earthworm’s digestive system consists of a mouth,a pharynx, an esophagus, a crop, a gizzard and an intestine. 1. mouth The first section of the earthworm, the anterior end or head, consists of the mouth and the prostomium, a lobe which serves as a covering for the mouth and as a wedge to force open cracks in…

What is the function of the earthworm brain?

The nervous system of the earthworm is “segmented” just like the rest of the body. The “brain” is located above the pharynx and is connected to the first ventral ganglion. The brain is important for movement: if the brain of the earthworm is removed, the earthworm will move continuously.