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Impulses are conducted rapidly if is present?
Myelin sheath. It is a fatty layer that surrounds the axon of a neuron and helps to speed up the transmission of electrical impulses along the neuron.
Why does increasing the axon diameter also increase the speed of impulse conduction?
Larger diameter axons conduct impulses more rapidly than axons with a smaller diameter. Larger axons tend to be myelinated and conduct impulses rapidly. Myelin is a substance rich in lipid that forms an electrical insulation layer around the axon. This insulating myelin sheath allows impulses to be transmitted more rapidly then small diameter axons that are nonmyelinated.
When impulses from various sources have an additive effect on a neuron the process is called?
When impulses from various sources have an additive effect on a neuron, the process is called summation. This can occur through temporal summation, where multiple impulses from the same source rapidly fire in succession, or spatial summation, where impulses from different sources converge at the same time to reach the neuron's threshold for firing.
How do neurotransmitters transmit signals across the synapse?
after impulse conductionby postsynaptic neurons is initiated, neurotransmitters activity is rapidly terminated. Either one or both of two mechanisms cause this. Some neurotransmitters molecules difuseout of the synaptic cleft back into synaptic knobs
What carries cardiac impulses to the myocardium?
Cardiac impulses are carried to the myocardium via specialized muscle cells called Purkinje fibers. These fibers are part of the cardiac conduction system and help to transmit electrical signals rapidly and efficiently throughout the heart muscle.
What kind of animal tissue functions in transmitting messages rapidly through the body?
Nervous tissue is the type of animal tissue that functions in transmitting messages rapidly through the body. It includes neurons that are specialized for conducting electrical impulses over long distances.
How do nerve impulses follow the fight or flight response?
During the fight or flight response, the brain perceives a threat and sends signals to the sympathetic nervous system to activate. This activation leads to the release of adrenaline, which binds to receptors on target cells, causing electrical impulses to travel rapidly along nerve fibers. These impulses prepare the body for physical action, such as increased heart rate and heightened senses, to deal with the perceived threat.
Do Signals travel along nerves in the form of rapidly diffusing neurotransmitters?
yes bcoz of myelin sheaths on the neurons .. they help the signal to move by jumping ... so that it moves faster with the help of neurotransmitters like acetyl choline .which helps in fast coduction of nerve impulse ..they r found generally at nerve endings to transfer the signal from 1 neuron to other.
How are impulses transmitted to and from the different body parts?
This is a rather tough question to answer succinctly, so here's a summary. Impulses are transmitted throughout the body with the combined efforts of the Central Nervous System (CNS) and the Peripheral Nervous System (PNS). The CNS is the brain, spinal cord, retina and cranial nerves. The PNS is the nerves spread throughout the body. The CNS is the core control center that receives, interprets and responds to any and all signals from all over the body. This process is completed by the use of neurotransmitters and inhibitors that initiate the signals along the neural ganglia from the CNS. A neuron is an excitable cell that has a lot of action potential, an action potential is a short acting event in which the electrical membrane potential of a cell rapidly rises and falls, following a consistent trajectory. Through the use of these action potentials and the voltage gated channels in the membranes an electrical pulse is sent throughout the body.Check the related links for a surprisingly good explanation of the in-depth process.
Indian Economy- The present macro-economic scenario?
The Indian economy rapidly growth, and reached the level of certainity
What is the nutrient present in sewage?
What are the nutrients present in sewage? What are the by products of waste water treatment? Name a plant which can absorb waste water rapidly and release pure water vapour to the atmosphere.
Present scenario of e-commerce in India?
in India it is increasing very rapidly and it help everybody in there day to day life.
