D) The concentration of this ion and negatively charged proteins is much greater inside the cell than outside E) The concentration of this ion is much greater outside the cell than inside F) Action potentials are conducted from one node of Ranvier to another G) An action potential occurs when a graded potential reaches this level H) Type of axon that is surrounded by extensions from oligodendrocytes or Schwann cells that wrap repeatedly around a segment of the axon
D) The concentration of this ion and negatively charged proteins is much greater inside the cell than outside E) The concentration of this ion is much greater outside the cell than inside F) Action potentials are conducted from one node of Ranvier to another G) An action potential occurs when a graded potential reaches this level H) Type of axon that is surrounded by extensions from oligodendrocytes or Schwann cells that wrap repeatedly around a segment of the axon
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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please answer D through K
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Step 1 Introduction on few terms:
The Neuron's membrane consists of sodium to be present in large quantity in the extracellular part and potassium and other negative charged proteins in the interior of the neuron cell membrane. The myelinated sheath is an extension of oligodendrocyte and Ranvier's Node are the area for sodium gated channels for saltatory conduction to operate in the myelinated axon. When a particular threshold is reached, then only the action potential is generated. The potassium channels are always open, also known as leak channels are simply non gated channels, that leads to the hyperpolarization effect in the neurons.
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