Higher death rates. Today's scientists point to climate change as the biggest global health threat of the 21st century.. It's a threat that impacts all of usâespecially children, the elderly, low-income communities, and minoritiesâand in a variety of direct and indirect ways. As temperatures spike, so does the incidence of illness, emergency room visits, and death.
The presynaptic neuron is the neuron whose axon forms a synapse with the dendrite of another neuron. The presynaptic neuron sends out information. The postsynaptic neuron is the neuron whose dendrite forms a synapse with the axon of the presynaptic neuron. The postsynaptic neuron receives information.ommunication between neurons is the foundation for brain function. Understanding how neurotransmission occurs is crucial to understanding how the brain processes and integrates information. Interruption of neural communication causes changes in cognitive processes and behavior.
Communication between neurons (with a few exceptions in mammals) is a chemical process. When the neuron is stimulated, the electrical signal (action potential) travels down the axon to the axon terminals.When the electrical signal reaches the end of the axon, it triggers a series of chemical changes in the axon terminal.he neuron has processes called dendrites that receive signals and an axon that transmits signals to another neuron. The cell body, also called the soma, is the metabolic center of the neuron. The nucleus is located in the cell body, and most of the cellâs protein synthesis occurs in the cell body.