Meaning of coleccionista in the Spanish dictionary with examples of use. Synonyms for coleccionista and translation of coleccionista to 25 languages. Educalingo cookies are used to personalize ads and get web traffic statistics.
For example, stimulation of the parasympathetic system causes constriction of the pupil of the eye and contraction of the ciliary muscle; increase of the glandular secretion of enzymes, as in the case of the pancreas; increased peristalsis; and a slowed heart rate.
Electrical impulses generated in the SN must then be conducted outside the SN in order to depolarize the rest of the heart. SN activity is regulated by the autonomic nervous system. For example, parasympathetic stimulation causes sinus bradycardia, sinus pauses, or sinoatrial exit block. These actions decrease SN automaticity, thereby decreasing the heart rate. Sympathetic stimulation, on the other hand, increases the slope of phase 4 spontaneous depolarizations.