temporal summation spatial summation Unidirectional and non-degrading Action potential o Depolarization; Na gates opening Repolarization: K gates opening o Hyperpolarization: K gates closing

Q: “All-or-none” response in impulse conductionmeans that

A: A biological cell performs numerous biochemical functions. The longest cell is the neuron. It is…

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: sodium rushing into the cell, making the potential difference positive

A: Neurons are the structural and functional units of the nervous system. These cells are specialized…

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: Describe saltatory conduction of an action potential

A: Action potentials are typically electrical signals, which serves to transmit a signal or message…

Q: During the relative refractory period: Can select more than one   K+ channels are open. Na+…

A: The action potential propagation is the method in which a stimulus travels through the neurons, and…

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: Compare and contrast graded potentials and action potentials. What are the functions of graded…

A: In animal cells, the plasma membrane expresses several types of ion channels that participate in the…

Q: Threshold is the minimum depolarization needed to________ Repolarize the membrane Open voltage-gated…

A: Neurons are the structural and functional unit of the nervous system that have the capability to…

Q: What is the term used to describe an action potential apparently jumping from one node of Ranvier to…

A: Action potential refers to the change in the voltage or potential across the membrane of the neuron,…

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: 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: The potential difference that must be met in order for an action potential to be generated When the…

A: Action potential An action potential is defined as an electric impulse that travels down through a…

Q: Describe how ion movement generates the action potential.

A: Action potentials can be defined as the nerve signals which are characterized by the sudden, fast,…

Q: Step-by-step, explain how an action potential is produced.

A: Action potential are potential difference created in axons of neurons for the transfer of nerve…

Q: Describe the changes that occur to the membrane that result in the action potential? *Include the…

A: Introduction: The brief sequence of events in the membrane potential following excitation is…

Q: Describe in detail  the  three types of potentials seen in neurons and functions of  three  types…

A: The creation of a cerebrum signal : • dendrites: get signals from adjoining neurons (like a radio…

Q: the refractory period limits the number of action .2 potentials that a given nerve cell can produce…

A: The neurons communicate with each other by generating action potentials. An action potential is…

Q: The speed of action potential propagation and synaptic transmissiondecreases with aging. List…

A: Ageing is a natural process that leads to several structural (such as decreased elasticity of the…

Q: Identify the neuron structures (1-8) 1 2 32 4 5 6 7 axon meylin axon hillock dendrite synapse Nissl…

A: The structural and functional units of the nervous system which are capable of sending and receiving…

Q: Explain why action potentials propagate along an axononly in a single direction.

A: A rapid, quick, transitory, and propagating shift in the resting membrane potential is an action…

Q: Correctly label the following parts of a myelinated axon. CNS PNS Oligodendrocyte Schwann cell…

A: Nervous system coordinates and controls the activities of the animals. It is responsible for…

Q: Give examples of graded potential, resting potential and action potential  seen in neurons.

A: Neurons are nerve cells that functions as the basic working unit of brain. They can carry…

Q: Explain Role of Na+ in the generation of action potential.

A: Ions are a charged atom or molecules. The unequal distribution of positive and negative charge…

Q: Anatomically, the motor endplate potential is characterized by synaptic boutons active zones O…

A: Motor endplate-The specialized postsynaptic area of a muscle cell(myocyte). The motor endplate lies…

Q: PhysioEx, Neurophysiology of Nerve Impulse

A: Neurophysiology of a nerve impulse includes the transmission of signals along the neuron,…

Q: Which results in more action potentials in neuron D, stimulation by only A or B or C? Explain

A: In order to transmit signal from origin to its destination, many neurons are required and these…

Q: What type of interaction is occurring at the trigger zone between two graded potentials arriving…

A: Action potential : As the signals are passed through the neurons, a massive increase in membrane…

Q: Explain the effects of neurotransmitter binding toreceptors in a chemical synapse

A: Neurotransmitters are the body's chemical messengers. The first neurotransmitter was acetylcholine.…

Q: Continuos propagation of action potentials occurs in myelinated axons and is faster than conduction…

A: Indeed.In myelinated axons, action potentials propagate continuously and more quickly than in…

Q: What is a graded action potential ,when talking about the nervous system, in human anatomy?

A: Graded potentials are changes in membrane potential that vary in size. They include diverse…

Q: explain the simplified version of the synaptic process resulting in long-term potentiation and…

A:

Q: (a)

A: Nerve cells or neurons are the cells that transmit and receive signals from the brain. These cells…

Q: Influx of ________ ions initiates neurotransmitter release into the synaptic cleft by the process of…

A: Impulse transmission at neuromuscular junction : Neurotransmitters are the chemical messengers…

Q: Describe the Neuronal Excitation Contraction Coupling and Describe the role of calcium as the…

A: The nervous system and the muscles are connected to facilitate movements. The muscle cell or muscle…

Q: If a resting potential becomes more negative, the membrane is said to be __________.

A: The behaviour and function of a cell depends on the membrane potential which directly affects the…

Learning and memory

Learning is defined as a relatively permanent and irreversible adaptive change in behavior. It always results from experience. The ability of an organism to store and recall the effects, sensations, and knowledge gained through learning and experience is called memory.