The Electrical Event That Begins Each Heartbeat Occurs at the Sinoatrial

question 60

True/False

The electrical event that begins each heartbeat occurs at the sinoatrial (SA) node.

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Definitions:

Opening

An aperture or gap that allows access, passage, or a view through something.

Light

A type of electromagnetic radiation that is visible to the human eye, responsible for the sense of sight.

Eye Sockets

The bony structures in the skull that house and protect the eyes, also known as orbits.

Sclera

The white, outer layer of the eyeball, providing structure and protection for the inner components of the eye.