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It varies by the type of cells involved (for example, a typical synapse from a pyramidal cell in motor cortex to a spinal cord alpha-motorneuron is not the same size as a synapse from that alpha-motorneuron onto a muscle fibre). But as one example, these 1950s papers examining prototypical synapses with an electron microscope (see related links) found that the presynaptic and postsynaptic membranes were separated by about 100-200 angstroms (10-20 nm); they contain synaptic vesicles that are 200-500 angstroms (20-50 nm) in diameter. In Plate 10 of the second of these articles (on invertebrates), the synapse labelled Y has a contact area that is maybe 0.4 micrometres (400 nm) in length in this electron microscope cross-section (so if this were a cut through the middle of a circular synapse, that'd imply a synaptic area of just over one square micrometre - but this is quite variable.
What else can I help you with?
How far do post synaptic potentials travel before they die out?
Post-synaptic potentials can travel up to a few millimeters along the dendrites of a neuron before they die out. The strength and duration of the signal can be influenced by various factors such as the size and shape of the neuron, the properties of the synaptic connection, and the presence of neurotransmitters.
How an impulse can continue to travel along a nerve pathway when there's a gap between two neurons?
An impulse can continue to travel along a nerve pathway when there's a gap between two neurons through a process called synaptic transmission. At the gap, known as a synapse, neurotransmitters are released by the sending neuron, which then bind to receptors on the receiving neuron, triggering a new electrical signal to continue the impulse along the nerve pathway.
what electrical wire size is largest?
Wire size 0000 AWG is the largest electrical wire. It is 0.46 inches in diameter or 11.86 mm in diameter. The cross sectional area is 107.16 mm(squared).
Who regulates the calculations for wire size ampacities?
The calculations for wire size ampacities are typically regulated by standards organizations such as the National Electrical Code (NEC) in the United States or the International Electrotechnical Commission (IEC) internationally. These standards outline the guidelines and formulas to determine the appropriate wire size for a given electrical load to ensure safety and compliance.
What is the electrical load of a cinema?
The electrical load of a cinema can vary depending on the size of the theater, the number of screens, the equipment used, and the lighting systems. On average, a cinema's electrical load can range from 200-600 kilowatts per screen.
How far do post synaptic potentials travel before they die out?
Post-synaptic potentials can travel up to a few millimeters along the dendrites of a neuron before they die out. The strength and duration of the signal can be influenced by various factors such as the size and shape of the neuron, the properties of the synaptic connection, and the presence of neurotransmitters.
How an impulse can continue to travel along a nerve pathway when there's a gap between two neurons?
An impulse can continue to travel along a nerve pathway when there's a gap between two neurons through a process called synaptic transmission. At the gap, known as a synapse, neurotransmitters are released by the sending neuron, which then bind to receptors on the receiving neuron, triggering a new electrical signal to continue the impulse along the nerve pathway.
What is the standard size of an electrical outlet?
The standard size of an electrical outlet is typically around 2 inches by 4 inches.
How long is a harelip?
A harelip is a vertical cleft in the upper lip that can vary in size and severity. It may extend from the lip to the nose or be limited to a small notch in the lip. Treatment typically involves surgical correction to close the cleft and restore normal lip structure.
What information does the ground wire size chart provide for electrical installations?
The ground wire size chart provides guidance on the appropriate size of ground wires to use in electrical installations to ensure safety and compliance with electrical codes.
What is the recommended wire size for a 220v electrical circuit?
The recommended wire size for a 220v electrical circuit is typically 10-gauge wire.
What is the recommended wire size for a 240v electrical circuit?
The recommended wire size for a 240V electrical circuit is typically 10-gauge wire.
What information does the conduit size chart in the National Electrical Code (NEC) provide for determining the appropriate conduit size for electrical installations?
The conduit size chart in the National Electrical Code (NEC) provides information on the maximum number and size of conductors that can be safely installed in a specific conduit size. This helps determine the appropriate conduit size for electrical installations to ensure compliance with safety standards and prevent overheating or other hazards.
What size wire do I need for my electrical project?
The size of wire you need for your electrical project depends on the amount of current the circuit will carry. Consult the National Electrical Code (NEC) or a qualified electrician to determine the appropriate wire size for your specific project.
What is the recommended wire size for a 50amp electrical circuit?
The recommended wire size for a 50 amp electrical circuit is typically 6-gauge wire.
What is the recommended wire size for a 125A electrical circuit?
The recommended wire size for a 125A electrical circuit is typically 2/0 AWG copper wire.
What is the recommended wire size for a 200A electrical circuit?
The recommended wire size for a 200A electrical circuit is typically 2/0 AWG copper wire.
