458 



STANHOl'E HAYNE-JONES 



briiiiclies of llie dcyceiuling ruiiii of tlu; coronary arteries which 

 supply the papillary muscles. These vessels form a subendo- 

 thelial plexus around tlu^ bases of the chordae tendineae, and 

 from this })lexus delicate strands of vessels can be seen passing 

 up along the chordae almost to their insertions in the valves. 



Fig. 3 Enlarged view of the arrangement of the small vessels in the vascu- 

 lar area along the line of closure of the human mitral valve. 



