Describe the characteristics of action potentials and explain how they are conducted by unmyelinated and myelinated axons.

Q: Explain what is meant by summation of graded potentials, and explain how summation may lead to an…

A: The “fundamental unit” of the nervous system is the neurons or nerve cells. These electrically…

Q: Explain in a presynaptic neuron triggers the membrane depolarization in a postsynaptic neuron and…

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

Q: Explain how a nerve impulse is initiated and transmitted along a neurone and across the synaptic gap

A: The neurons that basic fundamental units of the nervous system and also called ass nerve cells. Just…

Q: List four ways in which an action potential is different from a local potential.

A: SOME BASIC INFORMATION ABOUT A NEURON  NEURON   It is the longest cell inside the human body. It is…

Q: Categorize the major neurotransmitters by chemical type and effect

A: The nerve tissue is made up of many nerve cells called as neurons. These neurons are the structural…

Q: Explain the role of neurotransmitters in the transmission ofa nerve impulse across a synapse.

A: There are two divisions of the nervous system. The central nervous system includes the brain and the…

Q: Explain how action potentials move down an axon.

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

Q: Explain how action potentials are conducted by an unmyelinated axon.

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

Q: Describe the difference between graded and action potentials.

A: Graded potentials are caused by external stimuli (in sensory neurons) or by neurotransmitters…

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: Explain Mechanisms of Neurotransmitter Release

A: Neurotransmitters are the chemical messengers that involves in transmitting message from one nerve…

Q: Describe continuous nerve conduction

A: Transmission of action potentials along the nerves occurs in two ways. They are saltatory and…

Q: Explain why the strength of an action potential doesn’t decrease as it travels down an axon.

A: Action potential involves a transient change in the potential of a neuronal membrane that is caused…

Q: What would happen if summation of graded potentials in a neuron did not occur?

A: Neurons are the basic structural and functional unit of the nervous system. The nervous stimulus…

Q: Describe how action potentials are produced, and their neural pathways.

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

Q: Describe the actions of the neurotransmitters

A: There are over forty neurotransmitters within the human nervous system; a number of the foremost…

Q: Distinguish between neuromodulators and neurotransmitters.

A: Neurotransmitters and neuromodulators assume unmistakable parts in neurotransmitter transmissions. A…

Q: Describe how an Action Potential is conducted.

A: The body has a network of conductive cells known as neurons. The neurons are connected end to end,…

Q: Explain why the same neurotransmitter might be excitatory or inhibitory.

A: A neurotransmitter is a chemical signal that travels from a presynaptic cell (sending cell) to a…

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: Contrast continuous conduction with saltatory conduction.

A: Nerve impluse if conducted in two ways- 1. Propagation along an unmyelinated axon is referred to as…

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: Describe the role of neurotransmitters in the function of neurons.

A: The nervous system is one of the major control systems in our body which plays a major role in…

Q: Explain how stimulation of a postsynaptic cell is stopped.

A: Electrical signals travel through the dendrites to trigger a nerve impulse, also known as an action…

Q: Describe how depolarization occurs along an unmyelinated neuronal axon

A: Propagation of action potential leads to the depolarization of neuron.

Q: Describe the changes that occur during the depolarizationand repolarization phases of an action…

A: Muscle cells and nerve cells are electrically excitable. Nerve cells transmit sensory and motor…

Q: Explain the steps of an action potential

A: Whenever the neurons and the surrounding muscle cells are in a resting state and there is no…

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

A:

Q: Identify the four different types of neuronal pools, and explain how they function.

A: The nervous system is a complex system of nerves and specialised cells known as neurons. The nervous…

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 the steps that lead to the formation of an action potential.

A: The action potential is the state of excitability at which the membrane depolarizes and allows to…

Q: Explain the mechanism by which action potentials are prevented from being propagated to a…

A: Action potential Is a shift in the resting membrane potential that is immediate, rapid, transitory,…

Q: Describe saltatory conduction.

A: Neurons (also known as neurons or nerve cells) are the basic components of the brain and nervous…

Q: Differentiate between Myelinated and non-myelinated axons.

A: The axon functions to transmit messages to different body parts such as muscles, other neurons,…

Q: List the characteristics of a local potential versus an action potentials.  Describe where each…

A: Characteristics of a Local potential versus an Action potential are given below in the table:

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: Explain the process of Transmission of a nerve impulse across a chemical synapse.

A: Chemical synapse is the term given to the biological junction from the transmission of the signal…

Q: During the rising phase of an action potential, which which voltage gated channels are open?

A: Neurons communicate with one another by electric signals which are triggered by an action potential.…

Q: Why there is a refractory period in the action potential?

A: Action potential occurs in a cell due to the rapid rise and fall of the membrane potential of the…