### Circulation

 i u l n e e s c y r n e p c g a e i t t e n i r t a h e a r t f a i l u r e m s n t r r i n l e s o a i m e n a n r l w e e r a e e t b f b e c r m r g t e e l c a d w e u m m a i o e i e i o y e a c a p i l l a r i e s g n u l r a g l y n r a n a w t r a e h d r a w o t g i e e h c s e g l o s a b t u v s l l e c d o o l b e t i h w a h i b y l u n y a p e o a m r s e n u i r e a n c t l f o n g c e c s a e v u r m m s n t a y w e a o r o b s h a d a h e s y s l a s f n r v e b l o o d c l o t t i n g r t t c a i e e t a l t u d m v f a o r l a r e l r t e l t c v a l r t c p h e u t i o c e t h v m n v l e t t t v d c r r e s i u s a d r y t u r l a n v i f t e l f i e a s m r v b a p t r t w o a o i o e a s i o c s r e y a l d e l l a w k c i h t n l c t h w t s t l d o e r o e o o i m l y r c w e k e i i h u t s o k t p u l m o n a r y v e i n s l o b i r u d c e s k a m h h n b e o r n p e t e a r i e c o n u e t y n e e v p g r t n o u o t t g i e l s o m a s r e b m a h c r u o f o s a l o l b i p i s w r c o x y g e n r i c h r t l l l e o d a e t b s t u k u u a x l e l n e l p s r n p p t r o c d s e t e e r a r n a l d b u
 white blood cells red blood cells platelets plasma aorta left ventricle atrium lungs pulmonary veins cardiac muscle four chambers arteries capillaries anemia leukemia blood blood clotting hemoglobin away from heart toward heart blood vessels circulation heart attack stroke blocked artery oxygen rich connective tissue thick walled layers superior vena cava inferior vena cava one way valves blood pressure hypertension heart failure nutrients fight infection

Some of the puzzles that people list for the public get indexed by the search engines (like Google). Some people find those puzzles and cannot figure out how to make a puzzle of their own. So this page now has the navigation sidebar.

There are now buttons on the puzzle so that you can get a clean page, in either HTML or PDF, that you can use your browser's print button to print. The PDF format allows the web site to know how large a printer page is, and the fonts are scaled to fill the page. The PDF takes awhile to generate. Don't panic!

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