68 FARM ANIMALS 
4, The compartments of the cow’s stomach are known 
as the rumen, or paunch, the recticulum, the omasum, and 
the abomasum. The last is the true digestive siomach. 
The others are largely storage 
places for the saliva-mixed food. 
The first of these compartments 
is very decidedly a storing place 
where the food is placed until it 
is thrown back to the mouth for 
further mastication. This act, 
or cud chewing, refers to re- 
Dicestive System or Horse chewing the food so as to get it 
1, mouth; 2, pharynx; 3, esoph- finer and better ground for 
agus; 4, diaphragm; 5, spleen; 6, 5 . 
stomach; 7, cuodemims ©, wens digestion, The food, on, leav- 
9, large colon; 10, caecum; 11, 
apollo Mas Heating colons tee the mouth the second time, 
is passed through the rumen 
into the reticulum, then to the omasum and finally into the 
abomasum, or true stomach, where digestion is continued. 
5. The stomach churn.—In the first compartment, or 
rumen, a churning process is carried on continually. 
Some think this division of the stomach is never wholly 
empty. An alkaline fluid is supplied here, as is the case 
also in the second compartment. Food in the third com- 
partment is subjected to a squeeze which dries it, forc- 
ing the extracted juices into the true stomach or fourth 
compartment. 
6. Stomach secretion.—The stomach of every animal is 
lined by two kinds of membrane—one similar in nature 
to the lining of the cesophagus tube, and the other that 
admits of secretion. These do not form a double coat, 
but one blends into the other. The section giving off the 
secretion is known as the villous coat. It extends to the 
posterior end, and to the point where the small intestine 
joins with the stomach. 
