4*2 



ZOOLOGY FOR MEDICAL STUDENTS 



CHAP. 



flap-like structure attached to the heart-wall along its headward edge. 

 From the free edge of the valve and also from its outer surface pass 



FIG. 182. 



\. Genoa] dissivtk.n from the ventral side. a.v.D, Dorsal atrio-vcntricular 



'" / " ''" <:i;! " : '''A', ritfht ditto; b, bristle passed from ventricle into conus ; C, conus : 



; lu ; />.!, opening of pulmonary vein ; PC, pulino-cutaiu-oiis ; r.a, right 



i' cavity J s.a, atrial septum; s.c, septum of conus; s.o, o])c-iiing from sinus 



, -.I, v.-utral aorta. 



'1 >nk di" coniuvtixc tissue to the ventricular wall which serve 

 to limit the movement of the valve. 



