Q: Define the following terms: neuron, axon, dendrite, myelin sheath, afferent neuron, efferent neuron,…
A: Introduction Neuron: A neuron is a single nerve cell which consists of central cell body, terminal…
Q: Unmyelinated axons are found in both gray and white matter.
A: ANSWER) Gray matter mainly consists of unmyelinated axons whereas the areas of white matter only…
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: What is myelin? How does myelination differ in the CNS and PNS
A: The sensory system is the piece of a creature's body that organizes its conduct and communicates…
Q: Identify and describe the four functional neuron segments, including the distribution of channels…
A: While neurons share a ton practically speaking with different kinds of cells, they're basically and…
Q: ntinuously?
A: Given: Need to define how is a neuron prevented from firing potentials continuously
Q: Describe the functions of neuroglial cells.
A: A cell is the basic structural and functional key of life. A cell has multiple organelles that carry…
Q: Compare impulse conduction in myelinated andunmyelinated neurons.
A: Neuron -- Neurons are electrically excitable cells in the human bodies that communicate with other…
Q: How might the disease multiple sclerosis affect transmission of action potentials along a myelinated…
A: Sclerosis : It is the stiffening of a tissue or anatomical feature, usually caused by a replacement…
Q: The myelin sheath is produced around axons in the PNS by (a) ganglia (b) neuron cell bodies (c)…
A: MYELIN SHEATH It is an insulating layer that forms around nerves, including those in the brain and…
Q: What two types of macromolecules are the main components of myelin? a. carbohydrates and lipids b.…
A: The nervous system is made up of two main types of cells - neurons and the neuroglia. Neurons are…
Q: . Discuss the function of the myelin sheath and describeits formation in the CNS and PNS.
A: The nervous system is a part of body that consists of brain, spinal cord and sensory organs along…
Q: Name the parts of the multipolar neuron in order of polarity
A: Neurons are the basic structural and functional unit of the nervous system. The neurons functions by…
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: 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: Name and briefly describe the types of glia cells found in the nervous system.
A: The human body is comprised of central nervous system and peripheral nervous system which controls…
Q: If the plasma membrane of an electrically excitable cellwere depolarized to threshold in the center…
A: An action potential is defined as a swift increase that is followed by a drop in the voltage or…
Q: How do Schwann cells and oligodendrocytes differ with respect to the number of axons they myelinate?
A: There are two types of myelinating cells present in our nervous system: Schwann cells also known as…
Q: Distinguish the cell types that form the myelin in the PNSversus the CNS.
A: Answer: Introduction: The central nervous system-CNS consists of three main parts are the brain,…
Q: Name and describe six types of neuroglia.
A: Neuroglia: Neuroglia is defined as the cells that are in the central nervous system and peripheral…
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: Compare the signal conduction speed in myelinated fibers versus unmyelinated ones. Why aren’t all…
A: Ans: Myelination: In this process the fatty sheath which surrounds neuronal process as well as…
Q: Describe the relationships among myelin, the neurilemma,and nodes of Ranvier.
A: Neuron is the cell which interacts with each other through the special connections known as…
Q: What is the functional advantage of myelination?
A: The neuron or nerve cell is the fundamental unit of the nervous system. This is divided into three…
Q: neuroglial cells that produces
A:
Q: What is the function of myelin sheaths? Where are they found?
A: The nervous system is the network of neurons and nerve fibers that functions to transmit nerve…
Q: Explain how myelin helps speed up the conduction speed of action potentials along the axon of the…
A:
Q: How do oligodendrocytes myelinate axons and how does this differ from myelination by Schwann cells
A: Myelination Myelin is a lipid-rich protective insulating layer present around the nerve cell axons.…
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: . Describe the basic pathway of information flow throughneurons that causes you to turn your head…
A: Neurons are the cells of the nervous system, and are the structural unit of the nervous system. A…
Q: Which of the following is not correct about myelin sheaths? Select one O A. They are formed by glial…
A: The myelin sheath is the protective layer around the nerves. It acts as an electrical insulator and…
Q: How does conduction along a myelinated fiber differ from conduction along an un-myelinated fiber?
A: Myelin is a substance which is rich in lipids and surrounds the nerve cell axons in order to…
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: What terms denotes a sudden change (depolarization and repolarization) in the electrical properties…
A: 1) Neurons generate and conduct these signals and transmit them to the target tissues. On…
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: Draw a well labelled diagram of a myelinated neuron showing the following parts: Perikaryon,…
A: Neurons are the basic unit of the nervous system. They are the longest cell in the body. Their main…
Q: Which of the neuroglial cell types shown form myelin sheaths within the CNS? OA Ов Ос F
A: Neuroglial cells Neuroglia or glia or glial cells are non-neuronal cells present in brain and spinal…
Q: How different are theconcepts of action potential,resting potential andexcitation…
A: Step 1 The nerve impulse is a wave of electrochemical disturbance that passes along the elements of…
Q: Differentiate between excitatory postsynaptic potential EPSP and inhibitory postsynaptic potential…
A: The postsynaptic mechanism is referred to as the transportation and conduction of impulses in the…
Q: How does myelin aid propagation of an action potential along an axon? How do the nodes of Ranvier…
A: Action potential refers to a change in the membrane potential of the nerve cells by opening and…
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: Distinguish between the myelination process carried out by neurolemmocytes in the PNS and by…
A: The nervous system of humans is generally classified into the central and peripheral nervous…
Compare and contrast the neuroglial cells that form the myelin sheaths in both the CNS and the PNS?
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- Assume presynaptic excitatory neuron A terminates on a postsynaptic cell near the axon hillock and presynaptic excitatory neuron B terminates on the same postsynaptic cell on a dendrite located on the side of the cell body opposite the axon hillock. Explain why rapid firing of presynaptic neuron A could bring the postsynaptic neuron to threshold through temporal summation, thus initiating an action potential, whereas firing of presynaptic neuron B at the same frequency and the same magnitude of EPSPs may not bring the postsynaptic neuron to threshold.Discuss the neuroglial cells that produces myelin sheath.Discuss the concept of myelination and the purpose of the myelin sheath
- Explain how myelin helps speed up the conduction speed of action potentials along theaxon of the neuron.Define each of the following and explain its importance to neuronal function: dendrites, soma, axon, and presynaptic terminal?What two types of macromolecules are the main components of myelin? a. carbohydrates and lipids b. proteins and nucleic acids c. lipids and proteins d. carbohydrates and nucleic acids