Atrial Systole Is Responsible for the First Heart Sound, Whereas

question 143

True/False

Atrial systole is responsible for the first heart sound, whereas the ventricular systole is responsible for the second heart sound.

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Definitions:

Axon

A long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses away from the neuron's cell body.

Postsynaptic Neuron

A neuron that receives a signal (via neurotransmitter molecules) from another neuron at a synapse.

Action Potential

A temporary reversal of the electrical polarity of the neuron's membrane, facilitating the transmission of nerve impulses.

Excitation

The process or state of being energized or stimulated to action or to increased activity.