List the Correct Order of Steps in the Development of the Central

question 9

Essay

List the correct order of steps in the development of the central nervous system of a vertebrate.

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Definitions:

SA Node

The sinoatrial node, a group of cells located in the right atrium of the heart that generates electrical impulses initiating each heartbeat.

SA Node

The sinoatrial node, often called the heart's natural pacemaker, initiates electrical impulses that set the rate and rhythm of heartbeats.

Ventricular Contractions

The tightening of the heart's ventricles, which pumps blood out of the heart and into the arteries.

P-QRS Waves

Represents the electrical activity that triggers the heartbeat, as recorded by an electrocardiogram.