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dafne medina

sci221 StudyStack Set 2

QuestionAnswer
The magnitude of the action potential peaks when the sodium channels close. true
The mechanisms that produce and maintain the resting membrane potential do so by producing a slight excess of positive ions on the outer surface of the plasma membrane.
Which membrane receptor acts to directly change ion permeability when stimulated? Gated-channel receptor
The set of coordinated commands that control the programmed muscle activity mediated by extrapyramidal pathways is called the motor program.
A reflex consists of either a muscle contraction or a A reflex consists of either a muscle contraction or a
The sequence of auditory ossicles in the middle ear starting at the tympanic membrane and ending at the oval window is: malleus, incus, and stapes.
The type of membranous tissue that lines the heart and blood vessels is the endothelium.
Which two factors promote the return of venous blood to the heart? blood-pumping action of respirations and skeletal muscle contractions
Pyrogen molecules trigger the fever response by promoting the production of prostaglandins.
External respiration can be defined as: the exchange of gases between the lung and the blood capillaries in the lung and pulmonary ventilation.
Created by: user-1991172
 

 



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