Threshold for action potential -55mV -70mV IPSP EPSP -85mV Inhibitory neurotransmitter from neuron (1 Excitatory neurotransmltter from neuron (2

Q: How does hyperpolarisation decrease amplitude of an action potential during a train of action…

A: The rapid and large change of membrane potential of a nerve cell during which the potential reverses…

Q: What causes Hyperpolarization following the spike of the action potential?

A: The neurons have the capability to generate and transmit nerve impulses that ultimately guide the…

Q: Describe how graded potentials can lead to an action potential (temporal summation and spatial…

A: The measurable brain reaction to a given sensory, cognitive, or motor event is known as an…

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: Use Figure Q1(b) of an action potential to answer questions (i) until (iv) below. Choose the correct…

A: The neurons have the capability of generating and transmitting nerve impulses throughout the body.…

Q: Draw a typical action potential (correctly label axis) and explain in words the roles of ion…

A: An action potential (AP) occurs when the membrane potential of a particular cell position rises…

Q: Tetrodotoxin is a poison that prevents voltage-gated channels from opening. Would this toxin prevent…

A: Tetrodotoxin is a potential neurotoxin which is extremely poisonous and can be found in the liver…

Q: toxin creates pores that are permeable to Ca2+. Describe its immediate effect on the resting…

A: Action potential the action potential is defined as the rapid rise and fall in the membrane…

Q: Explain the relationship between threshold potential and an action potential.

A: An action potential can be defined as the phenomenon when there occurs at excitation of the nerve or…

Q: What does summation mean when we talk of postsynaptic potentials? When is summation non-linear?

A: Introduction  Postsynaptic potentials are those that usually occur as a result of alterations near…

Q: Why does neuronal function require the voltage-gated K+ channels to open more slowly than the…

A: Voltage-gated channels are specialized proteins that are essential for the generation and…

Q: Which of the following is true regarding the difference between graded and action potentials? a.)…

A: Action potentials activate neural circuits, which can either promote or inhibit particular bodily…

Q: Which of the following can an EPSP give rise to? Group of answer options Local hyperpolarization…

A: The nervous system of a human being is a complex system that helps to coordinate behavior and…

Q: If an excitatory neurotransmitter binds to the post-synaptic neuron, what type of an event will that…

A:

Q: The axon of neurone is stimulated experimentally with 25 mv pulse which initiates an action…

A: A neuron is made up of a soma or cell body and a neurite. Neurons transmitting signals away from the…

Q: When is an action potential triggered? (Choose 1)     When IPSPs exceeds EPSPs   When EPSPs exceeds…

A: The development of action potential depends on the movement of specific ions into the neurons that…

Q: How does the Action Potential Propagation occur?

A: The impulse generated at the axon hillock propagates as a wave on the axon.

Q: What letter(s) represent the starting point of an action potential?

A: Action potential generates when the neurons want to pass the information along the body from its…

Q: what would happen to the action potential if the potassium channels opened before the sodium channel

A: Neurons and muscles have cells that generate an action potential in response to stimuli. These are…

Q: Discuss the production of an action potential, includingdepolarization and repolarization

A: An action potential is defined as a sudden, fast, transitory, and propagating change of the resting…

Q: Define the refractory period in the propagation of action potential in two sentences. Give its…

A: Introduction: The brief cascade of events in the membrane potential after excitation is termed…

Q: Indicate which gate is responsible for halting the rising phase of the action potential.  1- Na+…

A: Action potentials are the electrical impulses that are responsible for transmitting information…

Q: What makes an action potential rise to +35 mV? What makes it drop again after this peak?

A: Action potential is defined as the sudden change in the resting membrane potential in the neurons…

Q: Explain the all-or-none law of action potentials, and describe the effect of increased stimulus…

A: In reaction to stimuli, the axon membrane permeability to and depends on the opening of gated…

Q: How do EPSPs and IPSPs affect the likelihood thatsummation will result in an action potential?

A: An action potential is a typical sequence of rapid increase and eventual decrease in voltage or…

Q: Explain summation of EPSPs and IPSPs and the relationship to the initiation of an action potential.

A: The neuromuscular junctions exert stronger effects than the postsynaptic effects generated due to…

Q: t is an EPSP? An IPSP? Define Summation. Distinguish between spatial & temporal summation or explain…

A: Neurons transmit information electrochemically where the chemicals lead to generate an electrical…

Q: Neurotransmitter binding to the receptor is transient andreversible. True or false?

A: In human physiology, neurotransmitters are defined as the chemical compound or substances of the…

Q: What will happen if threshold value for the generation of action potential is not reached?

A: Action potential is an electrical signal that travels along the cell membrane of neurons. It is…

Q: Temporal summation occurs when local potentials overlap in time.   a TRUE   b FALSE

A: An action potential is defined as the sudden, fast, transitory and propagating change in the resting…

Q: what does the oscillatory behavior in action potential indicate or mean?

A: A resting neuron is the one that is not transmitting any impulse and is in the resting stage with…

Sleep Physiology

Sleep is a condition of reduced muscle movement in the body. Awareness about the surroundings is reduced at the time of sleep. The body stays mildly responsive or non-responsive to external stimuli. The sleep-wake cycle is controlled by the circadian rhythm that produces a resting phase for the body.