Optional extra: make a twig for your acorn’s cup by single crocheting around a short length of pipe cleaner and then stitching it to the bottom of the cup with the same colour yarn. (NB please don’t do this if your acorn will be a toy for a small child, as the wire is not sa...
The valves TV′ and MV′ open and close through the beating cycle of the heart H. FIGS. 1 and 1A show a normal, healthy heart H′ during systole and diastole, respectively. During systole (FIG. 1), the myocardium MYO′ is contracting and the heart assumes a shape including a ...
The valves are secured, in part, to the myocardium MYO′ in a region of the lower portion LP′ adjacent the A-V groove AVG′ and referred to as the valvular annulus VA′. The valves TV′ and MV′ open and close through the beating cycle of the heart H. ...
The valves TV′ and MV′ open and close through the beating cycle of the heart H. FIGS. 1 and 1A show a normal, healthy heart H′ during systole and diastole, respectively. During systole (FIG. 1), the myocardium MYO′ is contracting and the heart assumes a shape including a ...