Topics: Action potential, Sodium, Neuron Pages: 3 (754 words) Published: May 8, 2013 Diaphoresis: Excessive sweating, to an uncommon degree, as a symptom of disease or a side effect of a drug. Motor dysfunction: abnormality of the motor system.

Paresthesia: abnormal skin sensation that may have no specific cause, such as tickling, tingling, burning, pricking, or numbness of a person's skin with. Cyanotic: A bluish discoloration of the skin and mucous membranes resulting from insufficient oxygenation of the blood. Hypoventilation: The state in which a reduced amount of air enters the alveoli in the lungs, resulting in decreased levels of oxygen and increased levels of carbon dioxide in the blood. This can happen by breathing to shallow or slow. Bradycardia: Bradycardia is a slower than normal heart rate. The heart usually beats between 60 and 100 times a minute in an adult at rest. Gastric lavage: washing out the stomach with sterile water or a saltwater solution; removes blood or poisons. Oxygen saturation: a measure of how much oxygen the blood is carrying as a percentage of the maximum it could carry.

What is a voltage-gated sodium ion channel? What is it made of? What is its function? A voltage- gated sodium ion channel is a protein that lets sodium ions flow down their electrochemical gradient across the cell membrane. The ion channel is made up of amino acids, like other protein ion channels. The function of the sodium ion channel is generation and propagation of action potentials down axons of neurons.

Why do sodium ions need channels in order to move into and out of cells? Sodium ions need channels in order to move into and out of cells because they are unable to move through the membrane by simple diffusion because of the phospholipid molecules that make up the membrane. This means that the membrane will (for the most part) not allow things with polar molecules to cross such as water and ions. The channels create a “passageway” that allows the Na+ ions to easily...
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