Cardiac pacemaker ventricles, within the atrial septum. If the AV node also fails, Purkinje fibers are occasionally capable of acting as the default or "escape" pacemaker. The reason Purkinje cells do not normally control the heart rate is that they generate action potentials at a lower frequency than the AV or SA nodes. Cardiac pacemaker The contraction of cardiac muscle (heart muscle) in all animals is initiated by electrical impulses known as action potentials. The rate at which these impulses fire controls the rate of cardiac contraction, that is, the heart rate. The cells that create these rhythmic impulses, setting the pace
Maite (given name) to: Maite (given name) Maite ( ) is a female given name of Basque origin meaning "love". It has become a popular name throughout Spanish-language countries, where it is usually stressed on the first syllable. Alternatively, it is also the Spanish nickname (sort of a contraction) for both "María Teresa" and "María Esther", in which case it is most frequently stressed on the last syllable and spelled with y, thus Mayté. It is also used as a proper name in the Portuguese-speaking Brazil in the forms of Maitê and Maytê (both pronounced /maj'te/), stressed on the last syllable. Mayte may