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- A neuron responds to adequate stimulation with _______, a type of self-propagating signal.When action potentials arrive at a synapse between a neuron and another cell, they stimulate the release of molecules of a ________ that diffuse over to that cell.Which statement is TRUE about the synapse? Neurotransmitters shuttle the signal back and forth between the pre- and post-synaptic cell. The pre-synaptic cell and post-synaptic cell are in direct contact, allowing the electrical signal to seamlessly flow from one to the other. The action potential jumps from the pre-synaptic cell into the post-synaptic cell. The action potential ends in the pre-synaptic cell and neurotransmitters carry the signal across the synaptic cleft to the post-synaptic cell.
- Which of the following describes temporal summation? Two pre-synaptic cells send alternating signals to depolarize and then hyperpolarize. Two pre-synaptic cells send simultaneous signals to hyperpolarize. One pre-synaptic cell sends a signal to depolarize and another cell simultaneously sends a signal to hyperpolarize. One presynaptic cell sends a repeated signal to depolarize. Two pre-synaptic cells send simultaneous signals to depolarize.Parkinson's Disease Parkinson's disease is neurodegenerative disorder that affects movement. Most people affected with Parkinson's disease demonstrate rigidity, slow movement, and shaking. The symptoms of Parkinson's disease occur when the cells that produce dopamine neurotransmitters die in the brain. Explain how the signal transmission at a synapse in an individual with Parkinson's disease is different than an unaffected individual. Describe the normal process of signal transmission at a synapse. Start with the arrival of an action potential at the axon terminal and include the name of the neurotransmitter that is affected by Parkinson's disease. Explain how the process is different in individuals affected with Parkinson's disease.What word is used to describe the release of neurotransmitters to stimulate another cell? impulse integration synapse action potential
- a model that represents action potential and synapses. must explain whyThese neurons belongs to the CNS: (More than one possible choice) A neuron in the brain A neuron carrying a signal into a skeletal muscle A neuron carrying a signal into cardiac muscle A neuron carrying signals form receptors in the skin A neuron carrying signals from the stomach a neuron in the spinal cord grey matterSpastic paralysis (resulting from the failure of muscles to relax), induced by the neurotoxin strychnine, occurs when this poison blocks the binding of: the excitatory neurotransmitter acetylcholine to post-synaptic sodium channels the excitatory neurotransmitter glutamate to post-synaptic calcium channels the excitatory neurotransmitter serotonin to post-synaptic potassium channels the inhibitory neurotransmitter glycine to post-synaptic chloride channels the inhibitory neurotransmitter melatonin to post-synaptic bicarbonate channels
- What is the difference between an action potential and a synapse? (select all that apply) The action potential moves down the axon and a synapse is between neurons. The synapse travels long distances and the action potential can only travel short distances. The action potential starts at the dendrites and the synapse starts at the ахon. The action potential is always the same and the synaptic potentials vary. the action potential involves only the postsynaptic neuron, but the synapse involves both the pre- and post-synaptic neurons.Compare and contrast electrical and chemical synapses.Cocaine blocks the removal of dopamine from the synapse, leading to a rapid rise of dopamine in the synapse. Which of the following best describes what will likely occur as a result of increased dopamine in the synapse? The presynaptic cell will be unable to release more neurotransmitter. the postsynaptic cell will return to its resting potential, causing feelings of well-being. The postsynaptic cell will be constantly activated, causing feelings of euphoria. The postsynaptic cell will respond more quickly to a change in output of the presynaptic cell, causing feelings of euphoria. The buildup of neurotransmitter will activate the presynaptic cell, causing feelings of euphoria.