Draw a well labelled diagram of a myelinated neuron showing the following parts: Perikaryon, Dendrites, Axon, Node of Ranvier, Myelin sheath.

Q: List the types of glial cells and assign each to the proper division of the nervous system, along…

A: The nervous system is a very complex organ system. The nervous system is divided into two major…

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: Describe in detail how movement of ions causes a neuron to fire . Make sure to include how membrane…

A: Every cell has an electric potential difference between inside and outside of the cell under the…

Q: Match the description with the statement that best describes the following regions e dendrites +…

A: Neuron:

Q: Match the names of the supporting cells found in column B with the appropriate descriptions in…

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

Q: Match the letter with the correct structure. В H.

A: Introduction The given diagram is of a Typical Motor Neuron. Motor neurons are neuronal cells…

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: Diagram and label the basic features of a neuron,indicating where information is received and where…

A: Neurons are an essential component of the nervous system whose function is to transmit information…

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: If all the Ca2+ in the fluid surrounding a neuron were removed, how would this affect the…

A: Action potentials coming at synaptic knobs enhance the release of neurotransmitter into the synaptic…

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: 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: 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: 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: 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: 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: 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: If extracellular [Na1] is elevated, how would the resting potential and action potential of a neuron…

A: The nervous framework is a profoundly intricate piece of a creature that facilitates its actions and…

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: 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: 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: Gray matter consists of... cell bodies, dendrites, and unmyelinated axons myelinated axons…

A: The central nervous system is composed of the brain and spinal cord, and the peripheral nervous…

Q: Describe how depolarization occurs along an unmyelinated neuronal axon

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

Q: Neurons can be classified in a number of ways. Which of the following is NOT a method used to…

A: *Neurons are units of brain and nervous system which are helpful in receiving sensory input from the…

Q: What structure is highlighted? A. Schwann cell B. Cytoplasm of Schwann cell C. Myelin sheath D.…

A: Schwann cells refer to the chief neuroglia of the PNS (peripheral nervous system). Neuroglia or…

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

A:

Q: Match the neuron structL correct function description Grey matter 1. Structure that receives stimuli…

A: In the human body, different types of cells are present and they form tissue. Each type of cell…

Q: Which component of the neuron sends action potentials away from the cell body?

A: A neuron is a building block of the nervous system. There are millions of neurons present in our…

Q: Neurons have three main components. Describe the function of each one a. Dendrites b. Cell body…

A: Nervous system is the complex system in our body which controls the entire body and coordinates the…

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: Describe how the resting membrane potential is established and maintained in a neuron.

A: The control and coordination in humans are done by the nervous and endocrine systems. The human…

Q: Distinguish between insulation by oligodendrocyte or Schwann cells. Relate myelination to signal…

A: Glial cells are the cells supporting the central as well as peripheral nervous system functions.…

Q: Name the point of contact between two neurons.

A: Neurons are termed as the basic unit of the brain, they transmit information to other nerves cells,…

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: Describe the four types of neurons according to the number of their processes and explain each

A: The four types of neuron based on their processes are unipolar, anaxonic, multipolar, and bipolar.…

Q: Label a diagram of a neuron (individual nerve cell), noting the function of each of the following…

A: In this question, we have to label the different parts of neutron, Resting potential and Action…

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: 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: 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…

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.