Science units 1 and 2 vocab Crossword
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
                              
 
 
Down: 1) process by which molecules move from an area in which they are highly concetrated to an area where they are less concentrated2) flap of tissue that prevents blood from flowing backward4) heart, to lung, then back to heart5) force in which the ventricles contract7) blood flows into these; here substances are exchanged between the blood and body cells10) the first branch blood is carried to the heart11) pumps blood out of the heart (lower)13) hollow, muscle organ that pumps blood throughout the body15) receives blood that comes to the heart (upper) Across: 3) largest artery of the body6) blood vessels that carry blood away from the heart8) heart, throughout body, back to heart9) push or pull12) instrument that measures blood pressure14) sends out signals that make teh heart muscles contract16) carries needed substances to cells and carries waste products away from cells17) force something exerts over a given area18) vessels that carry blood back to our heart
 

 

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