Chap. XIV] 



SUMMARY 



281 



(Esophagus, 

 or Gullet 



3 coats 



Function — 



Stomach, 

 Gaster 



or 



Curved 

 upon 

 itself 



Small or Thin 

 Intestine 



f Tube — 9 in. long. Extends from pharynx to stomach. 

 Inner — mucous — disposed in folds. 

 Middle — submucous. 



r Internal circular fibres. 

 Outer — muscular j External longitudinal 



I fibres. 



1. Connects the pharynx with the stomach. 



2. Receives the food and passes it on to 

 stomach. 



Hollow pouch. Capacity, 1 qt. 



Oblique position in epigastric and left hypochondriac 

 regions. 



'Greater curvature, below, directed toward 



the left. 

 Lesser curvature, above, directed toward the 

 right. 



Fundus or cardiac end is in contact with spleen. 

 Pyloric extremity under the liver. 



Intermediate region, between fundus and pyloric extremity. 

 Outer — serous — peritoneum. 



r 1. Longitudinal fibres. 

 Muscular < 2. Circular. 

 I 3. Oblique. 

 Submucous — vascular. 



r Rugae. 

 Mucous < 



f S.ympathetic system. 

 I Pneumogastric nerve. 

 Blood-vessels from coeliac axis. 



1. Connect the oesophagus with the intestine. 



2. To hold the food while it undergoes gas- 

 tric digestion. 



3. To secrete mucus and gastric juice. 

 Convoluted tube extends from stomach to valve of colon. 



Twenty feet coiled up in abdominal cavity. 



( Duodenum, 

 divisions < Jej unum. 

 I Ileum. 

 1 . Serous from peritoneum, called mesentery. 

 J Longitudinal layer. 

 \ Circular layer. 

 ( Blood-vessels. 



4 coats 



Nerves 



Function 



Glands 



Peptic \ . . 



Pyloric l^^^^^^J^^^^- 



2. Muscular 



4 coats 



3. Submucous 



4. Mucous 



< Lymphatics. 



I Nerves. 



f Circular folds. 



I Villi — contain lacteals. 



