c, gullet;
d, diaphragm (possessed only by mammals);
e, stomach;
g, small intestine;
h, h′, large intestine;
f, junction of small and large intestine;
g, g′, cæcum, or blind sac from f (corresponds to the shrunken rudimentary vermiform appendix in man);
m, carotid arteries;
n, heart;
o, aorta;