saltatory conduction

Examples of saltatory conduction in the following topics:

• Classification of Nerves

  • Efferent nerves conduct signals away from the central nervous system to target muscles and glands.
  • Fibers of the A group have a large diameter, high conduction velocity, and are myelinated.
  • Fibers of the B group are myelinated with a small diameter and have a low conduction velocity.
  • Fibers of the C group are unmyelinated, have a small diameter, and low conduction velocity.
  • The lack of myelination in the C group is the primary cause of their slow conduction velocity.

• Stages of the Action Potential

  • After the brain has processed the information, neural impulses are then conducted from the brain and spinal cord to muscles and glands, which is the resulting motor output.
  • In myelinated axons (axons covered by a myelin sheath), this process is described as saltatory because voltage-gated channels are only found at the nodes of Ranvier, and the electrical events seem to "jump" from one node to the next.
  • Saltatory conduction is faster than continuous conduction.

• Nerve Impulse Transmission within a Neuron: Action Potential

  • The speed of conduction of an action potential along an axon is influenced by both the diameter of the axon and the axon's resistance to current leak.
  • Myelin acts as an insulator that prevents current from leaving the axon, increasing the speed of action potential conduction.
  • Diseases like multiple sclerosis cause degeneration of the myelin, which slows action potential conduction because axon areas are no longer insulated so the current leaks.
  • Action potential "jumps" from one node to the next in saltatory conduction.
  • The action potential is conducted down the axon as the axon membrane depolarizes, then repolarizes.

• Student Learning Outcomes

  • Conduct and interpret hypothesis tests for two population means, population standard deviations known.
  • Conduct and interpret hypothesis tests for two population means, population standard deviations unknown.

• Student Learning Outcomes

• Codes of Conduct

  • Organizations adopt codes of conduct to guide employees' actions and decisions.
  • As part of comprehensive compliance and ethics programs, many companies formulate policies pertaining to the ethical conduct of employees.
  • Public signage often contains messages guiding conduct.
  • Similarly, behavior in organizational settings may be guided by organizational codes of conduct.
  • State the importance of utilizing a code of conduct to outline and maintain ethical business standards within an organization

• Conduction

  • Conduction is the transfer of heat through stationary matter by physical contact.
  • Some materials conduct thermal energy faster than others.
  • Fluids and gases are less conductive than solids.
  • Heat conduction occurs through any material, represented here by a rectangular bar.
  • The rate of heat transfer by conduction is directly proportional to the surface area A, the temperature difference T2−T1, and the substance's conductivity k.

• Student Learning Outcomes

  • Conduct and interpret hypothesis tests for a single population mean, population standard deviation known.
  • Conduct and interpret hypothesis tests for a single population mean, population standard deviation unknown.

• Doping: Connectivity of Semiconductors

  • The conduction band is the band above the valence band.
  • Electrons in the conduction band are free to move about in the lattice and can conduct current.
  • If the gap between the valence and conduction bands is large, then the substance does not conduct electricity easily (it is an insulator).
  • The gap between the valence and conduction bands determines whether a substance will conduct electricity.
  • The overlap or size of the gap between the valence and conduction bands determines the electrical conductivity of a substance.

• Plan the Research Design

  • The research design is a framework or blueprint for conducting the marketing research project.
  • Conducting exploratory research, precisely defining the variables, and designing appropriate scales to measure them are a part of the research design.
  • A research design is a framework or blueprint for conducting the marketing research project.
  • Decisions are also made regarding what data should be obtained from the respondents (e,g,, by conducting a survey or an experiment).