TBE STOMACH. 



281 



§ 732. Corpusctda Pacini, az. — Paciniaa corpuscles. — These are 

 oval bodies about 2 mm. long and 1 mm. thick. They are between 

 the layers of mesentery, and may be demonstrated, in lean cats, by 

 lifting the mesenteiy and looking through it toward the light. They 

 appear as translucent thickenings of the form and size mentioned 

 above. 



§ 733. Microscopic Structure. — (A) A connective tissue envelope. (B) Many concen- 

 trically arranged layers of translucent connective tissue. (C) A semifluid, riohly nucleated, 

 central mass. (D) The termination of a single meduUated nerve fiber. (E) A capillary 

 network of blood vessels. Strieker, A, 179 ; Quain, A, II, 150. 



Fig. 79.— Stomach and Duodenum, Ventral View ; x 1. 



§ 734. Diaphragma, a^.— Diaphragm (Pig. 90, § 712).— Draw 

 the stomach and liver somewhat caudad, and with a sharp scalpel 

 perforate the diaphragm, provided the thorax was not opened to 

 make the injection. This will allow the air to enter the thorax, and 

 the stomach, etc., may be kept in view. The diaphragm is fuUy 

 considered in § 816. 



Preparation— Pig. 79.— The cat was fed a moderate amount of 

 solid food about an hour before death. After death, the stomach 



