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Cardiovascular Crossword

Across
Carries blood between heart and body
System that is low blood pressure and high volume
Accounts for 46-63% of blood
The inferior tip of the heart
Carries low O2 blood to lungs
Valve that pumps high O2 blood to body
System that is usually in charge and reduces heart rate, affects only atria
System that is high blood pressure and low volume
Carries blood between lungs and heart
Surrounds the heart to prevent friction
0.1% of formed blood elements
Located between left ventricle and aorta
Down
Each have 3 cusps
System that increases heart rate, affects both atria and ventricles
Connect papillary muscles to the atrioventricular valves
Cell fragments from megakaryocytes involved in blood clotting
Tunica____, outer layer of blood vessels
Carries high O2 blood to heart
Located between the right ventricle and pulmonary trunk
Cells in SA node that initiate action potentials
Smallest blood vessels and exchange site of nutrients and waste
Cells that contract to pump the blood out of the heart
Bumpy ridges of muscle in the ventricles
Pumps low O2 blood to lungs
Collects low O2 blood from lower and upper body
Tunica_____, the middle layer of blood vessels
Finger-like projections of muscles in the ventricle
Muscles that compress and open venous valves to assist with venous return
Lead away from heart
99.9% of formed blood elements