Describe how the two phases of repolarization reset the neuronal axon to be depolarized again

Q: discuss the process of the neuron firing an action potential from the resting period to the…

A: The process of normal neuronal firing takes place as a communication between neurons through…

Q: Describe the propagation of an action potential. Contrast this eventin myelinated and unmyelinated…

A: An action potential is produced in the body of the neuron and spread through its axon.  The action…

Q: Does mylination or axon diameter have a greater effect on speed of an impulse?

A: Introduction  Complex organisms such as Multicellular organisms needs control and coordination…

Q: What happens to K+ channels during depolarisation?

A: The control and coordination of the body are carried out by the nervous and hormonal systems. The…

Q: Discuss how myelination influences the speed of an actionpotential

A: Neurons are the basic unit of the nervous system that carry electrical stimuli throughout the body.…

Q: Describe how the speed of nerve signal conduction varies with axon diameter and the presence or…

A: Neurons send information and instructions throughout the brain and body. The information is sent via…

Q: Define depolarization, repolarization, and the action potential.

A: Depolarization in terms of a cell can be explained by the condition of less negative charge inside…

Q: Compare impulse conduction in myelinated andunmyelinated neurons.

A: Neuron -- Neurons are electrically excitable cells in the human bodies that communicate with other…

Q: briefly explain the distribution of ions in an axon during depolarization and repolarization.

A: Action potential or an electrical impulse is another name for a nerve impulse. In contrast to a…

Q: Describe how gating of Na+ and K+ in the axon membrane results in the production of an action…

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

Q: Suppose you placed an isolated neuron in a solution similar toextracellular fluid and later…

A: A neuron's resting membrane potential is around -70 mV (mV = millivolt)thismeans the neuron's inside…

Q: What is the conduction velocity of the action potentil in a myelinated axon of the nerve cell?

A: The conduction velocity is the speed in which electrochemical impulse propagates down a neural…

Q: What happens at the nodes of Ranvier in a myelinated axon?

A: Introduction: Myelinated axons have microscopic gaps within them called nodes of Ranvier. These gaps…

Q: Why is the cell unable to initiate another action potential if stimulated during the refractory…

A: The time between two consecutive action potentials is called refractory period. Action potential…

Q: with creative freedom illustarte the events of resting potential, depolirization and repolirisation…

A: Resting membrane potential is electrical potential difference across the membrane when the cell is…

Q: If sodium and potassium ions are both positively charged, what causes the negative membrane…

A: Resting membrane potential is defined as the difference in the electric potential across the plasma…

Q: Explain the structure of the axon.

A: Neurons or nerve cells are the basic structural and functional unit of the brain. Brain tissue…

Q: Describe the molecular machinery required for neurotransmitter release at the synapse

A: The central nervous system (CNS) communicates with the different parts of the body by means of…

Q: List the steps involved in transmitting activity across a chemical synapse from one neuron to…

A: The nerve cell consists of a dendrite which are branched extensions that help in receiving the…

Q: Explain why a nerve impulse travels more quicklydown a myelinated axon than down an…

A: Neurons are electrically excitable cells and these communicate with other cells through specialized…

Q: Explain the distribution of ions in an axon during repolarization

A: Action potential or an electrical impulse is another name for a nerve impulse. In contrast to a…

Q: During an action potential _______    A. Na+ flows out of cell and causes depolarization  B. K+…

A: A characteristic pattern of rapid rise and subsequent fall in voltage or membrane potential across a…

Q: Why can a greater-than-normal stimulus trigger an AP during the relative refractory period but not…

A: Our brain sends and receives information in the form of electrical signals. These electrical signals…

Q: Explain how myelin helps speed up the conduction speed of action potentials along the axon of the…

A:

Q: Distinguish between convergence and divergence in a neuronal pool.

A: The term neuronal pool refers to the group of nerve cells that receive and transmit information via…

Q: Suppose you depolarize an axon midway between its initial segment and its terminus. А. In which…

A: Depolarisation of axon:  This occurs when the Sodium ions rapidly rush inside the neuron via…

Q: Once an EPSP is produced in a dendrite, how does it stimulate the production of an action potential…

A: An excitatory postsynaptic potential in short ESEP is a modification in the post-synaptic cell’s…

Q: Name a neurotransmitter stored at the terminal end of the axon.

A: The nervous system of an organism is quite complex network that is responsible for coordinating…

Q: If an axon receives two stimuli close together in time, only one AP occurs. Why?

A: An action potential is the electrical form of messages transmitted across the body via the nervous…

Q: describe the events of neuron depolarization and repolarization

A: The action potential is referred to as the process in which there occurs variation within the…

Q: Describe what happens in the "All or None" response, including terms such as depolarization,…

A: The principle all- or - none states that the responses of the nerve cells or muscle fiber are not…

Q: In the prototypical neuron explain in detail the electro-chemical events that characterize an action…

A:

Q: Briefly explain how a neuron at resting potential becomes activated.

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

Q: Using a stimulus intensity of 65 µA, produce an action potential in the simulated neuron on…

A: Introduction Action potential is a shift in electrical potential caused by an impulse passing across…

Q: In myelinated axons where are the most Na+ channels found?

A: Axon is the largest part of the neuron measuring up to 1meter in length. They carry the nerve…

Q: Define refractory period, and explain the difference between the absolute refractory period and…

A: Action potential of a nerve fibre is the active state of transmission of nerve signal from one…

Q: Distinguish between saltatory nerve signal conduction in myelinated axons versus unmyelinated

A: Saltatory conduction is a form of nerve impulse conduction in which the action potentials are…

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: One EPSP from neuron A depolarizes the initial segment of a neuron by +2 mV, one EPSP from neuron B…

A: 4) Mechanism of nerve conduction : • The action potential in pre synaptic neuron reaches its…

Q: Explain the anatomy and function of the reticular activating system (RAS).

A: The brain is the most complex organ of the body that forms the part of the central nervous…

Q: Explain why myelinated axons can propagate (spread) action potentials faster than unmyelinated…

A: The axons of many neurons have a segmented white insulating cover over it. This is called the myelin…

Q: The membrane voltage at the axon hillock is not affected by_ O a. EPSPS b. temporal summation OC.…

A: Hello. Since you have asked multiple questions. We will be able to answer only the first one. for…

Immunology

Immunology is the division of science involved with the immune reactions occurring in living organisms. The organisms are accustomed to evolving internal defense mechanisms to evade the invasion of microbial pathogens. Diverse cells are connected with stimulating the immune responses, which produce inhospitable conditions to the microbes prompting their lysis and thus inhibits the multiplication of the pathogens. The immune system can distinguish the pathogens through the aid of cellular intercommunication and launch responses to destroy them.