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The Cardiovascular System

Across
The pacemaker of the heart
Stimulates the atria to contract at the same time
Chambers in the heart that are superior
Forms 45% of blood and carries O2/CO2
AB blood types are the universal ________
This happens when the blood vessel gets smaller
The space withing the blood vessel
Blood classification method which uses antigens for determination
Local blood flow is hightened
Visceral sac that contains the heart
Valves located between ventricles and the aorta/pulmonary trunk
Makes up 55% of blood; mostly made of water; transports blood cells
Carries nutrients and wastes to/from cells
A vessel that moves blood AWAY from the heart
Iron-based protein that is essential for transporting gasses in the blood
Local blood flow is decreased
Down
0 blood types are the universal ________
Chambers in the heart that are inferior
Muscular organ; primary function is to pump blood
Activates blood clotting and forms plugs
120/80mmHg is a normal healthy ______ in an adult.
Part of the immune system; protects from pathogens and dead cells
This happens when the blood vessel gets bigger
Gas exchange at the cellular level occurs here
The ventricles fill with blood
The contract and eject blood
Valves located between the atria and the ventricles
A vessel that moves blood TOWARD the heart