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.
Sensory neurons typically have a long dendrite and short axon, and carry messages from sensory receptors to the central nervous system. Motor neurons have a long axon and short dendrites and transmit messages from the central nervous system to the muscles (or to glands). Interneurons are found only in the central nervous system where they connect neuron to neuron. Structure of a neuron and the direction of nerve message transmission.