a second nerve impulse cannot be generated until
a second nerve impulse cannot be generated until
- September 25, 2023
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Dendrites- Receive the signals from the axon ends. A second nerve impulse cannot be generated until ____ the membrane potential has been reestablished Saltatory conduction is made possible by ________. True or False, A graded potential that is the result of a neurotransmitter released into the synapse between two neurons is called a postsynaptic potential. A second nerve impulse cannot be generated until _____. The interior is ________. a stimulus? the membrane potential has been reestablished. The chemically gated channel, NMDA, allows ________ ions entry into the nerve cell. The transmembrane movement of ions is actually carried out by molecular mechanismspecifically, by protein molecules embedded in the lipid layers. Solved A second nerve impulse cannot be generated until - Chegg When a sensory neuron is excited by some form of energy, the resulting graded potential is called a(n) ________. Unmyelinated axons do not have nodes of Ranvier, and ion channels in these axons are spread over the entire membrane surface. b) ligand-gated channel The term central nervous system refers to the ________. A) Conducting regionB) Receptive regionC) Secretory A nerve impulse is produced when a stimulus acts on the nerve fibre, resulting in electrochemical changes across the nerve membrane. Transmission takes place through gap junctions, which are protein channels that link the cellular contents of adjacent neurons. membrane exhibits chemically gated ion channels. An action potential works on an all-or-nothing basis. Involved in activating fibers of a skeletal muscle such as First, diffusion of the neurotransmitter across the synaptic cleft takes approximately 0.05 millisecond. What does this flow of ions do to the relative charge inside the neuron compared to the outside. the membrane In chemical synapses, the conduction of nerve impulse occurs through chemical signals. Free Flashcards about Chapter 11 A&P - StudyStack Ch.11 - Subjecto.com The sodium-potassium pump is a mechanism of active transport that moves sodium ions out of cells and potassium ions into cells. Like the receptor potential, the PSP is a graded response, varying in amplitude according to the duration and amount of stimulation by neurotransmitters. Which of the choices below describes the ANS? This delay may be accounted for by three factors. This problem has been solved! Because the neurotransmitter chemicals are packed into separate, almost identically sized vesicles, their release into the synaptic cleft is said to be quantalthat is, they are expelled in parcels, each vesicle adding its contents incrementally to the contents released from other parcels. a second nerve impulse cannot be generated until: the membrane potential has been re-established: in what way does the interior surface of a cell membrane of a resting (nonconducting) neuron differ from the external enviroment?
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