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: Discuss the mechanism of action-potential in neurons?
A: Introduction: All excitable tissue like nerve and muscle tissue have membrane potential. The…
Q: Name the neurotransmitter that conducts nerve impulse through synapse.
A: Neurotransmitters are signalling molecules that act on receptors of postsynaptic neurons. Neurons…
Q: Illustrate the Binding of Neurotransmitters to Receptors?
A: Neurotransmitters are type of chemical messengers that help to transmit the stimuli from one neuron…
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: 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: 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: Explain how the resting membrane potential is established and maintained in neurons.
A: BASIC INFORMATION NEURON It is the longest cell inside the human body It is found in the brain…
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: Explain how the sodium–potassium pump and the properties of the membrane lead to the resting…
A: Sodium-Potassium pump is an active transport mechanism, which takes place in the cell membrane of…
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 the myelin sheath that is formed around certain nerve fibers?
A: Neurons or nerve cells are the fundamental units of the nervous system. The function of these cells…
Q: Describe how action potentials are conducted by unmyelinated nerve fibers. Why is saltatory…
A: Introduction :- Conductability is the capacity to conduct the electrical along it's pathway. The…
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: 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: Describe how the permeability of the axon membrane to Na+ and K+ is regulated and how changes in…
A: Introduction Sodium and Potassium are the two most important ions which plays a crucial role in…
Q: Explain why neurons could not function without the properties of excitability, conductivity, and…
A: Neurons are the basic unit of the nervous system. They are also the largest cells found in our body.…
Q: Explain the structure, function, and locations of myelin.
A: The Action Potential is the way of transporting an electrical signal from one neuron to the next. 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 the structure of the axon.
A: Neurons or nerve cells are the basic structural and functional unit of the brain. Brain tissue…
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: Describe the characteristics of action potentials and explain how they are conducted by unmyelinated…
A: The minimum electrical potential required to do a muscle contraction or any action is called action…
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: Compare the characteristics of action potentials with those of synaptic potentials.
A: Action potential and synaptic potential are two important key terms in Human Nervous System. Here we…
Q: describe the events tha
A: The nerve cell or neuron is the primary unit of communication of the nervous system. These cells…
Q: If the middle of an axon were depolarized to threshold, in which direction could the action…
A: Neurons are the basic unit of the nervous system. They are involved in the transmission of nerve…
Q: Describe how depolarization occurs along an unmyelinated neuronal axon
A: Propagation of action potential leads to the depolarization of neuron.
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 the effect of the myelin sheath and the nodes ofRanvier on the conduction of impulses.
A: Neurons are brain cells that are specialized to transmit nerve impulses. The action potential…
Q: Explain the cocept of Myelin Sheath ?
A: All organisms are made of billion s of cells. All cells are like the bricks that organise to make up…
Q: Which is the correct order of the firing of a neuron?
A: Neurons are structural and functional unit of the nervous system. Neurons control the activity of…
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: 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: 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: Does the refractory period limit the number of action potentials that a nerve cell can produce per…
A: Introduction :- The interval after an action potential is created during which the excitable cell is…
Q: What might prevent an EPSP from stimulating action potentials?
A: An excitatory postsynaptic potential (EPSP) is the potential of postsynaptic neuron to create an…
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 function of glial cells.
A: Glial cell mainly help to protect and support the Neuron . There are many type of glial cell found…
Q: Describe how an action potential in a presynaptic neuron causes a) an excitatory postsynaptic…
A: At the chemical synapse the presynaptic and postsynaptic cells are not in physical contact but are…
Explain how myelin helps speed up the conduction speed of action potentials along the
axon of the neuron.
Step by step
Solved in 7 steps with 6 images
- Describe how action potentials are conducted by unmyelinated nerve fibers. Why is saltatory conduction in myelinated fibers more rapid?Explain why a nerve impulse travels more quicklydown a myelinated axon than down an unmyelinatedaxon.Explain why myelinated axons can propagate (spread) action potentials faster than unmyelinated axons.
- Describe the propagation of an action potential. Contrast this eventin myelinated and unmyelinated axons?Explain how a neuron “decides” whether or not to generate action potentials.Describe the characteristics of action potentials and explain how they are conducted by unmyelinated and myelinated axons.