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Luz Peterson

Physio Week 7-13

QuestionAnswer
The speed of a nerve impulse depends on the neuron’s resting potential. True or False False
The magnitude of the action potential peaks when the sodium channels close. True or False True
In a myelinated neuron, the impulse can travel under the myelin between nodes of Ranvier. True or False True
Parasympathetic stimulation has no effect on any of the following areas except: -sweat glands -skin blood vessels -the liver -the urinary bladder Sweat glands
The parasympathetic and sympathetic divisions always act with a cooperative influence, and through summation of the impulses, the effect can be increased. True or False False
Atria are often called _____ because they receive blood from vessels called veins. Receiving chambers
The mechanisms of which three hormones work together to regulate blood volume? Aldosterone, ANH, ADH
The ability of our immune system to attack abnormal or foreign cells but spare our own normal cells is called: Self-tolerance
Which of these substances operate(s) immune mechanisms? -sebum -mucus -enzymes -hydrochloric acid in stomach mucosa -all of the above All of the above
The sensors that provide feedback information to the medullary rhythmicity area are the Central chemoreceptors and peripheral chemoreceptors
The substances absorbed into the lymph capillaries are: Glycerol and fatty acids
The final step in lipid transport by the intestines is the formation of -micelles -chylomicrons -bile -sodium bicarbonate Chylomicrons
Created by: user-1991079
 

 



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