REMARKS ON 
PHYSIOLOGY AND ANATOMY. 
Tue following cut represents the stomach, which is shaped 
like a bag, and usually contains about two or three pints in 
an adult or full-grown person. It is capable of being con- 
tracted or extended, as the case may require. The letter ¢ is 
the tube-through which the food passes, called the cardiac 
orifice, The letter p shows the outward passage, which is 
called the pylorus or door-keeper, as it prevents the food 
from passing out until it is properly digested, and also pre- 
vents it from returning after it has been sent out. The 
stomach is situated on the left side of the body under the 
ribs, and has three coats or coverings. The stomach has also 
