278 ANATOMICAL TBCBNOhOQY. 



the liver, and may be fully exposed by turning the edge of that 

 organ cephalad. 



The space occupied by the stomach depends largely on the 

 amount of food it contains. 



§ 715. Splen, a2.— Spleen (Fig. 103, § 737).— This is a deep red, 

 usually single lobed organ, situated on the sinistro-caudal aspect 

 of the stomach. 



§ 716. Omentum majus, epiploon, az. — Great omentum (Fig. 77, 

 § 727). — This appears as a kind of transparent apron extending 

 caudad from the stomach. It contains many strips of fat. 



§ 717. Intestinum tenue, az. — Small intestine. — Very carefully 

 turn the omentum over toward the thorax. The greatly coiled cyl- 

 indrical small intestine will be exposed (Fig. 77, § 738). 



§ 718. Urocystis, (22.— Urinary bladder (Fig. 77, 101, § 757).— In 

 the caudal part of the abdomen will be seen a median sac, usually 

 more or less filled with liquid. This is the urocystis, the receptacle 

 of the urine. 



§ 719. Intestinum amplum, az. — Large intestine (Fig. 77, § 742). 

 — Turn the coil of small intestine toward the left leg. The large 

 intestine will be seen on the right side extending first cephalad from 

 a blind extremity, the ceecum (Fig. 80), nearly to the stomach, then 

 transversely across the cavity a little to the left of the meson, and 

 finally somewhat obliquely caudad. 



§ 720. Pancreas, az. (Fig. 81, 103, § 746).— Turn the large intestine 

 to the left ; the pancreas will appear as a pinkish, finely lobulated 

 and elongated body within the great omentum near its dorsal 

 attachment to the stomach. It extends from the spleen dextrad to 

 the pylorus, and then for 5-10 cm. along the small intestine (Fig. 83). 



§ 721. Mesenterium, a2.— Mesentery (Fig. 78, § 726).— Grasp 

 the small intestine and lift it up. The mesentery is the translucent 

 membrane supporting the intestine and serving to attach it to the 

 body. It is a fold of peritoneum (§ 726). 



§■ 722. Ren— Kidney (Fig. 101, § 761).— Turn the stomach and 

 intestines to the right, and the left kidney, a dark red body, will 

 appear resting on the ventral surface of the muscles of the back 

 near the meson and but a short distance from the diaphragm. 



§ 723. Uterus, az. (Fig. 77, § 759).— Turn the urocystis ventro- 

 caudad, and if the animal is a female the uterus will be seen resting 

 upon the rectum, and sending a prolongation — cornu or horn— 

 cephalad on each side toward the kidney. 



