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Chapter: 11th Zoology : Chapter 3 : Tissue Level of Organisation

Neural Tissue

Neural Tissue
Nervous tissue exerts the greatest control over the body’s responsiveness to changing conditions.

Neural Tissue

 

Nervous tissue exerts the greatest control over the body’s responsiveness to changing conditions. Neurons, the unit of neural system are excitable cells (Figure 3.8). The neuroglial cells which constitute the rest of the neural system protect and support the neurons. Neuroglia makes up more than one-half of the volume of neural tissue in our body.

 

When a neuron is suitably stimulated, an electrical disturbance is generated which swiftly travels along its plasma membrane. Arrival of the disturbance at the neuron’s endings, or output zone, triggers events that may cause stimulation or inhibition of adjacent neurons and other cells 



 


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