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ECHO CH 1. CROSSWORD

Horizontales
encases heart, fluid-filled sac that covers heart to protect from infection and trauma, helps with free pumping motion of heart, loose double-layered sac of elastic connective tissue
relaxes and receives blood from LA, contracts and ejects blood to AO
bottom of heart, inferior, rotates anterior in leftward direction
outer layer of pericardium
filling chambers, located in superior portion of heart
Divides ventricles
center layer of heart wall, consists of thick muscular tissue composed of striated muscle fibrils with contractile elements called myofibrils, main pumping mechanism
relaxes and receives blood from RA, then contracts and ejects blood into main PA, most anterior
outermost layer of heart wall, covers surface of heart and extends to great vessels
Verticales
carries deoxygenated blood from RV to the lungs
receives deoxygenated blood from body
pericardial space fills with additional fluid
between the visceral and parietal layers, contains clear fluid that is released by the serous membrane, acts as a lubricant during contraction; contains 10-30 ml of fluid
top of the heart, superior, rotates posterior in rightward direction
lines inside of fibrous pericardium
receives oxygenated blood from the lungs, most posterior
pumping chambers, located in inferior portion of heart