The cardiac cycle is the performance of the human heart from the ending of one heartbeat to the beginning of the next heartbeat.It consists of two periods: one during which the heart muscle relaxes and refills with blood, called diastole, following a period of robust contraction and pumping of blood, dubbed systole.
<span>Tthe way that they display landmasses.</span>
He geography of Canada describes the geographic features of Canada, the world's second largest country in total area.<span> </span>
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Definition of mayor-council. : of, relating to, or constituting a method of municipal government in which policy-making and administrative powers are vested in a usually elective mayor and council — compare council-manager plan, strong mayor, weak mayor.
The geographic term “Asia” was originally used by ancient Greeks to describe the civilizations east of their empire. Ancient Asian peoples, however, saw themselves as a varied and diverse mix of cultures—not a collective group. Today, the term “Asia” is used as a cultural concept, while subregion classifications describe the distinct geopolitical identities of the continent. These classifications are Western Asia, Central Asia, Southern Asia, Eastern Asia, Southeastern Asia, and Northern Asia.
