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Where are electric found?
Electrical synapses are found in the retina.
Where are electrical synapses found?
Synapse is located, where two neurons meet each other. One cubic cm of brain cortex have about one billion synapses, probably.
Describe the general structure of a synapse?
Synapses occur between two neurons. Electrical activitiy in the pre-synaptic neuron influences the post-synaptic neuron. There are two types of synapses in the body: Electrical and chemical. Electrical synapses occur in pre and post synaptic neurons that are joined via gap junctions. Currents from action potentials flow across the junction through channels called connexons. This current will depolarize the membrane of the post synaptic neuron to threshold, which will continue the action potential in the cell. Electrical synapses are fast and bidirectional. However, they are mainly found in cardiac and smooth muscles, and not in the mammalian nervous system.Chemical synapses use neurotransmitters. Depolarization occurs in the pre-synaptic neuron and calcium ions rush in. The calcium ions activate neurotransmitter release into the synaptic cleft. The neurotransmitters reach the post-synaptic neuron and cause action potentials to develop.Note: this can go into much more detail
Can excitatory synapses occur anywhere on a dendrite or soma?
True
What is an electrical synapse?
Chemical synapses are much slower to react to stimuli. However chemical synapses transmit a signal with constant strength or even a signal that get stronger. This is called "gain." Electrical synapses are faster but have no "gain," the signal gets weaker as it travels along the synapse to other neurons. Electrical synapses are only used for applications where a reflex must be extremely fast. They are simple and allow for synchronized action. A benefit of electrical synapses is they will transmit signals in both directions. Chemical synapses have many important advantages as well. They are more complex and vary their signal strengths. Their functions are influenced by chemical outputs in the nervous system. Chemical synapses are the most common type.
The electrical synapses between adjacent myocardial cells are called?
gap junctions
What are the differences between axodendritic and axosomatic synapses in terms of their structure and function?
Axodendritic synapses occur between the axon terminal of one neuron and the dendrites of another neuron, while axosomatic synapses occur between the axon terminal and the cell body (soma) of another neuron. In terms of structure, axodendritic synapses are more common and allow for communication between neurons, while axosomatic synapses are less common and are involved in regulating the firing of the postsynaptic neuron.
What are specialized junctions between neurons called?
Specialized junctions between neurons are called synapses. Synapses allow neurons to communicate with each other by transmitting signals in the form of neurotransmitters. There are two main types of synapses: electrical synapses, where ions flow directly between neurons, and chemical synapses, where neurotransmitters are released to relay the signal.
What are the synases?
Synapses are specialized junctions that facilitate communication between neurons or between neurons and other types of cells, such as muscle cells. At a synapse, the presynaptic neuron releases neurotransmitters, which cross the synaptic cleft and bind to receptors on the postsynaptic cell, triggering a response. There are two main types of synapses: chemical synapses, which use neurotransmitters, and electrical synapses, which allow direct electrical signals to pass between cells. Synapses play a crucial role in neural communication, influencing processes like learning, memory, and reflexes.
Would you expect synapses to occur in grey matter or in white matter?
Synapses are seen more in grey matter because dendrites meet with axonites in grey matter and dendrite is a part of grey matter.
Are gap junctions chemical synapses?
Gap junctions are connections between cells and some do pass ions from one cell to another cell. Some are chemical, some are electrical synapses ans some are direct connections.
What are gap junctions in cells?
They are connections between animal cells which connects the cytoplasm between the cells; in neurons, they are electrical synapses.
