Can someone help me. I need to know for nervous tissue, it's defined by ??? I have a worksheet and have gone through all the other ones, but my book or a web site hasn't helped me with finding the nervous tissue. I know the 2 kinds, neurons and glia, but need to know how it's defined. Thanks

This site defines nervous tissue.

http://en.wikipedia.org/wiki/Nervous_tissue

Thank you. That is about all I found too. I guess I'll have to go with that.

Of course! I'd be happy to help you with understanding the definition of nervous tissue. Nervous tissue is a specialized type of tissue that is found in the nervous system, which includes the brain, spinal cord, and nerves. It is responsible for transmitting and processing electrical signals throughout the body.

To define nervous tissue, you can focus on its characteristics and functions. Here are the key points to consider:

1. Structure: Nervous tissue is made up of two main types of cells, which you've already mentioned: neurons and glial cells (also known as neuroglia). Neurons are the functional units of the nervous system and play a crucial role in transmitting signals. Glial cells, on the other hand, support and protect the neurons.

2. Electrical Transmission: The key function of nervous tissue is to transmit, process, and integrate electrical signals, which are called nerve impulses or action potentials. Neurons have specialized structures, such as dendrites, axons, and synapses, that allow them to receive, conduct, and transmit these signals.

3. Sensory and Motor Functions: Nervous tissue is responsible for sensing and responding to stimuli from the internal and external environment. It allows us to perceive sensory information, such as touch, taste, sight, and sound, and enables us to generate motor responses, including muscle contractions and movement.

To find more detailed information about nervous tissue, you can consult reliable sources such as textbooks, educational websites, or scientific journals. If your book or website hasn't provided sufficient information, you could try searching for related keywords on reliable search engines like Google Scholar or PubMed. These platforms often provide access to research papers and scientific articles.

Additionally, you might consider seeking assistance from your teacher or classmates. They can assist you in understanding the topic better and guide you to additional resources, like reference books or online materials, which could provide the information you need.

Remember, it's always beneficial to do some research on your own and seek help when necessary. I hope this explanation helps, and if you have any further questions, feel free to ask!