Following Are Events That Occur During the Cardiac Cycle

question 19

Multiple Choice

Following are events that occur during the cardiac cycle.
1) Ventricular pressure increases and exceeds pressure in the arteries.
2) Ventricles fill passively.
3) Atrial relaxation begins.
4) Atrial contraction forces a small amount of additional blood into relaxed ventricles.
5) Pressure in ventricles drops and blood flows back against cusps of semilunar valves, forcing them closed.
6) Ventricular contraction pushes AV valves closed.
Choose the correct order of events in the cardiac cycle.

• A) 4, 6, 3, 1, 2, 5
• B) 2, 6, 1, 4, 3, 5
• C) 3, 6, 1, 5, 4, 2
• D) 2, 5, 1, 6, 3, 4
• E) 4, 3, 6, 1, 5, 2

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Definitions:

Neuron's Axon

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

Messages To Other Cells

The process by which cells communicate with each other through the release and reception of chemical signals or neurotransmitters.

Receive Messages

The process of perceiving and interpreting information from others through various forms of communication.

Send Messages

The act of transmitting information from one individual or entity to another through various forms of communication.