A change in the voltage across a neuron’s plasma membranethat makes the neuron less likely to fire an action potential isa. a change that makes the resting potential less negative.b. an excitatory postsynaptic potential.c. an inhibitory postsynaptic potential.d. a change that lowers the threshold.

Q: Transmission of the nerve signal across a synapse is accomplishedby thea. movement of Na+ and K+.b.…

A: Introduction  Neuron/Nerve: A neuron is a single nerve cell which consists of central cell body,…

Q: What event triggers an action potential?a. Opening of sodium channelsb. Opening of delayed potassium…

A: 1- Opening of delayed potassium channels 3-High concentration of negative ions outside the cell.…

Q: The Na+/K+ ATPase pump is a. not required for action potential firing. b. important for…

A: Introduction  Chloride is the most abundant anion in the extracellular fluid. Along with Chloride…

Q: A synapse is basically the same thing as a neurotransmitter. a. True b. False

A: Neuron is the structural and functional unit of nervous system. Electrical signals are transmitted…

Q: increases the probability of producing an action potential, where a ________ decreases the…

A: Depolarization increases the probability of producing an action potential, where a hyperpolarization…

Q: Transmission of the nerve impulse across a synapse isaccomplished bya. the release of Na+ at the…

A: Introduction  Neuron/Nerve: A neuron is a single nerve cell which consists of central cell body,…

Q: Which of the following is NOT an example of communication that happens from one neuron to another…

A: Answer: - Option a - Endocrine signalling (ex. hormones secreted into the bloodstream travel and…

Q: When a neuron’s resting potential is occurring, the neuron is __________ charged on the inside. a.…

A: Neuron is a cell present in the nervous system that is accountable for receiving and transmitting…

Q: Choose the best answer for following question: Transmission of the nerve signal across a synapse is…

A: BASIC INFORMATION   NEURON   It is the longest cell inside the human body  It is found in the brain…

Q: Which of the following is true of graded potentials? a. They always reach the same voltage o b. They…

A: Neurons are the basic structures and functional units of the nervous system. The axon or the nerve…

Q: A subthreshold stimulusa. produces an afterpotential.b. produces a graded potential.c. causes an…

A: A neuron sends information down their axon to another neuron or other cells and communicates with a…

Q: The difference in charges across the plasma membrane of anunstimulated neuron is calleda. an EPSP.b.…

A: A neuron refers to the structural and functional unit of the nervous system which is involved in the…

Q: 32) In order for a nerve impulse to be transmitted across a synapse, a neurotransmitter must be…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Explain the propagation of an action potential. 1. Start with a stimulus 2. Follow through two…

A: An action potential is a brief electrical signal that is transmitted along the membrane of a neuron…

Q: For a neuron to fire an action potential, its membranemust reach ________.a. hyperpolarizationb. the…

A: An action potential is a rapid rise and subsequent fall in voltage or membrane potential across a…

Q: Posttetanic potentiation of a synapse increases the amount of in the axonterminal.a.…

A: The nervous system is highly complex among different organ systems in animals. By transmitting…

Q: During the Refractory period of the action potential, the neuron will: Select one: O a. Not respond…

A: Nerve cells or neurons are excitable cells of nervous system. A typical neuron consists of cell body…

Q: True or False a. When they are at rest, neurons are more positively charged inside than outside the…

A:

Q: During the depolarization phase of an action potential, the permeability of the plasma membrane toa.…

A: Depolarization influence the membrane to attain the threshold potential at which the nerve cell…

Q: Which of the following examples of synaptic integration is most likelyto lead to an action potential…

A: The cell that lies after the synapsis and receives the neurotransmitter from the presynaptic cell is…

Q: At an electrical synapse, presynaptic and postsynapticmembranes interface througha. neurofibril…

A: Gap junctions

Q: When the action potential begins, Na+ gates open, allowing Na+ to cross the membrane. The charge…

A: Membranes potential can be defined as the change in electric potential due to changes in the amount…

Q: Myelinated and unmyelinated neurons requires _________ to propagate action potential down the axon.…

A: Neurons are the electrically excitable cell in our body which communicate with the other cell by a…

Q: A synapse is:   a. a gap between neurons   b. crossed by a chemical   c. separates the axon end…

A: the microscopic gap present between terminal end of axon of one neurone and dendron or axon or cell…

Q: In a chemical synapse,a. action potentials in the presynaptic terminal cause…

A: An electrical synapse can be described as a type of synapse that contains channel proteins…

Q: .dחaMa"in it the

A: The equilibrium potential is the particular membrane potential where the net flow through any open…

Q: The rate of information transmission from the central nervous system (CNS) to an effector organ will…

A: Nerve impulses or action potentials are electrical signals that travel along the length of a neuron.…

Q: Excitatory postsynaptic (EPSP'S) the resting membrane potentials A. have little or no effect b…

A: A current generated in our body in the membranes of the neuron cells. It is due to voltage…

Q: What enables action potential to jump from one node of Ranvier to the next? OA. Increased LC OB.…

A: Nodes of Ranvier are points in the axon where myelin sheath is absent and hence conductance is…

Q: At an electrical synapse, presynaptic and postsynaptic membranes interface through a. neurofibril…

A: The brain is the main part of the body that controls every action in our body. It is located in the…

Q: Neurotransmitters must pass from an axon terminal to the next dendrite by crossing a fluid-filled…

A: Neurons facilitate communication in the brain. A neuron is made up of dendrites (receives…

Q: Summationa. is caused by combining two or more graded potentials.b. occurs at the trigger zone of…

A: The action potential is the temporary shifts in the potential of the neuronal membrane which results…

Q: An excitatory postsynaptic potential   a. is only one of several types of graded potential.   b.…

A: Preynaptic cell is the cell or a neuron from where the signal is passed on to the synapse to the…