Pathway of Circulation14

9

11

10

8

6

13

12

6

5

4

32

1

1

16

15

14

7

And so on…It takes about 1 min. for blood to make 1 complete cycle

Structures of the Heart• Chordae tendinease – “Heart strings”– Cord-like tendons – Connect papillary

muscles to tricuspid and mitral valves

– Prevent inversionof valve

• Papillary muscles– Small muscles that

anchor the cords Papillary muscle