140 



RUMINATIOK 



divided the phrenic nerves in a sheep, and this animal after- 

 wards ate, and next day ruminated, but the abdominal 

 muscles were called upon to make an extra effort owing to 

 the paralysis of the diaphragm. When the abdominal 



Fig. 73. 



muscles were paralysed by division of the spinal cord, rumi- 

 nation could not occur. 



The act of regurgitation is a very apparent one, from the 

 considerable mass which ascends and distends the oesophagus, 

 making a considerable eructating noise at the same time. 

 The moment that the rejected bolus enters the mouth, there 

 is an act of swallowing, by which the abundant liquids ac- 

 companying the solid food are carried back to the stomachs, 

 entering, in fact, the third stomach, as well as the fir^t and 

 second. 



