The phylum Cnidaria encompasses over nine thousand aquatic species. All of these species share common characteristics such as being invertebrates and having no major systems. For example, instead of having a complex nervous system, cnidarians have something called a nerve net which is a simple nervous system. They lack a brain and cephalisation which means the concentration of sensory organs in the head region. However, a nerve net allows the organism to have a response to its environment. In the middle of the nerve net is a nerve ring which allows the cnidarian to swim. An example of an organism with a nerve net is a Hydra.
Yes - all Cnidarians have nerve nets, simple nervous system where neural pathways are interconnected and is evenly distributed in the organism.
The nerve net carries impulses in more than one direction.
The nerve net is a loosely organized network of nerve cells in cnidarians that allow for the detection of stimuli. It is distributed throughout the body of the organism and facilitates simple reflexive responses to environmental cues.
yes sea anemones have a nerve net.
Nerve Net was created on 1992-09-01.
The nerve cells of cnidarians make up a simple nerve net. This nerve net allows for basic sensory perception and coordination of movements in these organisms.
All your cells are part of you, and you are an organism. Nerve cells are included.
Part of an organism
The hydra has a nervous system characterized by a nerve net. A nerve net is a collection of separate, but "connected" neurons. Neurons are connected by synapse. Communication between neurons can be in both directions at the synapse within a nerve net. The nerve net is concentrated around the mouth. Unlike higher animals, the hydra does not have any grouping of nerve cell bodies. In other words, there are no ganglia. The hydra does have specialized cells for touch and chemical detection.
neuroepithelial cells
nerve net