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Physiology

Week 7-14

QuestionAnswer
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.
Movement of the membrane potential away from zero (below the usual RMP) is called repolarization. hypopolarization. depolarization. hyperpolarization. hyperpolarization.
The difference in electrical charge between the inside and outside of a membrane is called the membrane potential. T or F True
The effect of sympathetic stimulation on the urinary bladder is relaxation. constriction. dilation. no effect. relaxation.
The most numerous cerebral tracts are the projection tracts. association tracts. commissural tracts. cerebral nuclei. association tracts
The set of coordinated commands that control the programmed muscle activity mediated by extrapyramidal pathways is called the motor program.
Both sympathetic and parasympathetic divisions are tonically active, which means they continually conduct impulses to autonomic effectors
The _____ is an extension of the great toe, with or without fanning of the other toes, in response to stimulation of the outer margin of the sole of the foot. corneal reflex plantar reflex ankle jerk reflex Babinski sign Babinski sign
The process of deglutition includes all of the following except the _____ stage. oral pharyngeal esophageal laryngeal laryngeal
The final step in lipid transport by the intestines is the formation of micelles. chylomicrons. bile. sodium bicarbonate. chylomicrons.
Peristalsis is regulated in part by the intrinsic stretch reflexes. It is also thought to be stimulated by the hormone gastrin. secretin. glucagon. cholecystokinin (CCK) cholecystokinin (CCK)
Because fats are insoluble in water, they must be catalyzed. emulsified. absorbed in the stomach. secreted before they enter the small intestine. emulsified
The chemical process in which a compound unites with water and then splits into simpler compounds is called dehydration synthesis. hydrolysis. emulsification. none of the above. hydrolysis
Created by: kamma22
 

 



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