Which of the following would be an example of spatial summation that produces a depolarizing effect at the postsynaptic neuron? Resting membrane potential is -70 mV and threshold is -55 mV.

Q: Which refers to the time during which a neuron can undergo an action potential? O the resting…

A: Nervous system is one of the most important system of our body it send and receive information via a…

Q: You are recording the electrical activity of a cell body with a resting membrane potential of -70…

A: Given; Resting membrane potential of the cell= -70mV No. of stimuli detected by the cell= 3 from…

Q: Which of the following statements best describes the properties of a myelinated axons?     The…

A: Axons are surrounded by a multilayered protein and lipid covering, called the myelin sheath. Such…

Q: Given that a neuron's action potential moved at a speed of 105 m/sec, would you expect this neuron…

A: Neuron is the nerve cell present in the nervous system. It transmits the impulse from brain to body…

Q: You are recording the resting membrane potential from a neuron placed in a petri dish. The following…

A: The correct answer to this question is option C i.e. increase concentration of K+.

Q: LA. Action potential +40 Falled Threshold -55 initiations Resting state -70 Stimulus t Refractory…

A: Generation of nerve impulse in nerve fibre depends on distribution of sodium and potassium in and…

Q: 6. You are interested in how the density of NMDA receptors in the postsynaptic membrane prior to…

A: NMDA is the N-Methyl-D-aspartic acid or it is also called N-Methyl-D-aspartate. It is an amino acid…

Q: An action potential is shown below. Number 4 on the graph is showing which phase? 3 Membrane…

A: Action potential is a brief reversal of membrane potential where the membrane potential changes from…

Q: Identify the stages involved during the changes in membrane potential of the neuron represented in…

A: Nervous system is an important system which helps in maintaining the homeostasis of the human body.…

Q: Cholinesterase is an enzyme that breaks down acetylcholine in the synapse. What would be the result…

A: The interaction between acetylcholine and cholinesterase plays a significant role in the functioning…

Q: You apply a drug to a batch of neurons and record membrane potential changes in the presynaptic and…

A: Ans: Chloride (Cl- )

Q: 1.3 Quantitative effect of non-constant time constant Say that a particular neuron, X, has a set of…

A: The time constant of a membrane is a measure of how quickly it responds to a stimulus. A longer time…

Q: A F - E Match the labelled synapse structure with the correct structure or function. Place the…

A: We can say that A synapse is a junction between two neurons. This helps in the signal transmission…

Q: Excitatory neurons A and B both synapse with neuron C. Neuron A releasesa neurotransmitter, and…

A: The junction between two neurons is known as a synapse and when a neuron reaches its action…

Q: Which neuron would probably have the fastest traveling action potentials? O Axon 10 µm and…

A: Neurons or nerve cells are the structural functional units of the nervous system. It is composed of…

Q: Match the stages of action potential with the appropriate image or description.   PICK AND MATCH…

A: Action potential is defined as the rapid depolarization and repolarization of the membrane…

Q: (HBS 2.2.2) Match the letter to the correct structure name. -A ‚B re-uptake E Y D F Y : Receptor…

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

Q: If neurons fire action potentials when membrane potential reaches -50mV, how would hyperkalemia…

A: Hyperkalemia is a medical condition where there is an excess of potassium ions (K+) in the…

Q: Which of the following would occur if you were measuring the voltage of a motor neuron that was…

A: They are regulated by inhibitory neurotransmitters such as glutamate and GABA. They prevent an…

Q: Which ion concentration relationship is true when a neuron is at rest? (Select all that apply) More…

A: When a neuron is not sending a signal it is at 'rest'. During the rest state, all the voltage-gated…

Q: 1. Shown below are figures of the closed and open structures of the voltage gated potassium channel…

A: Introduction Voltage-gated K+ channels, also known as Kv channels, are found in almost all animal…

Q: Matching (may not use al choices; may use some choices more than once) Sección 79. Site of action…

A: The communication of neurons with each other take place with the help of brief electrical signals…

Q: Which of the following statements are true with regards to the differences between a neuromuscular…

A: The following statements are true with regards to the differences between a neuromuscular junction…

Q: f a post synaptic neuron is stimulated to threshold by spatial summation this implies that the post…

A: The nervous system is composed of millions of nerve cells called neurons. Synapses are junctions…

Q: Which of the following describes the concentration of K+ and Na+ ions in and around a resting…

A: An action potential is an electrical signal that travels along the surface of a cell. This signal is…

Q: A drug binds to sodium voltage-gated channels and prevents them from opening. Which of the following…

A: The development of nerve impulse depends on the differential concentration of different ions across…

Q: Conditions: [Na+] outside = .3 mM [Na+] inside the presynaptic cell = .01 mM [dopamine] inside =…

A: Autonomic nervous system consists of preganglionic neuron from CNS, ganglia and postganglionic…

Q: Summation means that a post-synaptic neuron only has an action potential if:     there are no…

A: The neurons have the capability of generating and transmitting electrical impulses throughout the…

Q: Of the following, which must be true for an action potential? I - Action potentials only occur when…

A: The action potential is a potential that is fired when the voltage-gated sodium ion channels open.…

Q: 1. Why does the action potential not go back to where it came from? (Multiple answers possibly) the…

A: An EMG is a type of electrical recording device. Muscles are constantly sending electrical impulses.…

Q: The giant squid axon has a diameter = 1mm and 1 = 13mm. Compared to a mammalian neuron with a…

A: Introduction  In neurons, graded potentials are electrical signals that vary in amplitude and…

Q: Which of the following situations O None of these result in exten O Compromising the inactivatio…

A: Normally, the cells maintain a negative charge compared to the exterior of the cell. This charge…

Q: Now assume that you have a typical neuron that has very few Na+ channels open relative to the number…

A: Introduction :- The difference between the concentration of ions on two opposite sides of membrane…

Q: Which statement below best describes why action potentials travel in only one direction? O The…

A: Action potential refers to the rise in the electrical activity from a resting state due to an…

Q: An action potential Membrane potential (mV) -40 40 -65 II -80 0 -Overshoot Rising Falling phase…

A: Answer.  Voltage-gated sodium channel are inactivated and locked at point III. Option (b) is…