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In CNS development, neural stem cells are special pluripotent cells that produce only radial glial cells. These radial glial cells then differentiate into neurons and glial cells, forming the central nervous system.
At the end of the axon is a terminal button, which forms synapses with spines, or protrusions, on the dendrites of neurons. Synapses form between the presynaptic terminal button (neuron sending the signal) and the postsynaptic membrane (neuron receiving the signal; see Figure 3).
2 Φεβ 2024 · Terminal buttons at the ends of neurons contain vesicles filled with neurotransmitters. When an electrical signal (action potential) reaches these terminals, it triggers the release of these chemical messengers. The neurotransmitters cross the synaptic cleft and bind to receptors on the receiving neuron.
We examine how they generate electrochemical signals, and how the billions of neurons in the nervous system communicate with one another, a process known as synaptic transmission. Before tackling these topics, we review and expand the basic anatomy and functioning of neurons covered in part in Chapter 4.
14 Σεπ 2024 · Explore the biological perspective in psychology, its key concepts, research methods, applications, examples, and limitations in understanding human behavior.
19 Απρ 2018 · the science that deals with the biological basis of behavior, thoughts, and emotions and the reciprocal relations between biological and psychological processes. It also addresses topics such as behavior-changing brain lesions, chemical responses in the brain, and brain-related genetics.
Define ionotropic and metabotropic receptors and discuss in what ways they differ from one another in their effects during synaptic transmission; Explain the steps in synaptic transmission from pre-synaptic neuron to post-synaptic neuron
