TABLE OF CONTEXTS. 13 



PAGE 



CHAPTER XXXVIII. THE INFLUENCE OF VARIOUS CONDITIONS UPON 



THE RESPIRATION 648 



Effect of Muscular Work on the Respiratory Movements, 048. Effect of 

 Variations in the Composition of the Air, 648. High and Low Barometric 

 Pressures, Mountain Sickness, Caisson Disease, 650. The Respiratory Quotient 

 and Its Variations, 652. Modified Respiratory Movements, 653. 



SECTION VII. 



PHYSIOLOGY OF DIGESTION AND SECRETION. 

 CHAPTER XXXIX. MOVEMENTS O-F THE ALIMENTARY CANAL 655 



Mastication, 655. Deglutition, 655. Nervous Control of Deglutition, 659. 

 Anatomy of the Stomach, 660. Musculature of the Stomach, 661. Move- 

 ments of the Stomach, 661. Effect of the Nerves on the Movements of the 

 Stomach, 664. Movements of the Intestines, 666. Peristaltic and Pendular 

 Movements of the Intestines, 666. Nervous Control of the Intestinal Move- 

 ments, 669. Effect of Various Conditions on the Intestinal Movements, 669. 

 Movements of the Large Intestines, 670. Defecation, 671. Vomiting, 672. 

 Nervous Mechanism of Vomiting, 674. 



CHAPTER XL. GENERAL CONSIDERATION OF THE COMPOSITION OF THE 



FOOD AND THE ACTION OF ENZYMES 675 



Foods and Foodstuffs, 675. Accessory Articles of Diet, 677. Enzymes, 

 Historical, 678. Reversible Reactions, 680. Specificity of Enzymes, 682. 

 Definition and Classification of Enzymes, 682. General Properties of Enzymes, 

 684. Partial List of Enzymes, 685. Chemical Composition of the Enzymes, 

 685. 



CHAPTER XLL THE SALIVARY GLANDS AND THEIR DIGESTIVE ACTION . 687 



Anatomy of the Salivary Glands, 687. Histological Structure, 689,-^Com- 

 position of the Secretion, 690. The Secretory Nerves, 691. Trophic and 

 Secretory Nerve Fibers, 693. Histological Changes during Activity, 694. 

 Action o*f Drugs upon the Secretory Nerves, 697. Paralytic Secretion, 698. 

 Normal Mechanism of Salivary Secretion, 698. Electrical Changes in Glands, 

 700. Digestive Action of Saliva; Ptyalin, 700. Conditions Influencing the 

 Action of Ptyalin, 701. Functions of the Saliva, 702. 



CHAPTER XLII. DIGESTION AND ABSORPTION IN THE STOMACH 703 



Structure of the Gastric Glands, 703. Histological Changes during Secretion, 

 704. Method of Obtaining the Gastric Secretion and Its Normal Composition, 

 705. The Acid of Gastric Juice, 707. Origin cf the HC1, 707. Secretory 

 Nerves of the Gastric Glands, 708. Normal Mechanism of the Secretion of 

 the Gastric Juice, 709. Nature and Properties ct Pepsin, 711. Artificial 

 Gastric Juice, 713. Pepsin-hydrochloric Digestion, 713. The Rennin En- 

 zyme, 715. Digestive Changes in the Stomach, 717. Absorption in the 

 Stomach, 718. 



CHAPTER XLIII. DIGESTION AND ABSORPTION IN THE INTESTINES 721 



Structure of the Pancreas, 721. Composition of the Secretion, 722. Secre- 

 tory Nerve Fibers to the Pancreas, 722. The Curve of Secretion, 723. Nor- 

 mal Mechanism of Pancreatic Secretion, 724. Secretin. 725. Enterokinase, 

 725. Digestive Action of Pancreatic Juice, 725. Significanceof Tryptic Diges- 

 tion, 728. Action of the Diastatic Enzyme (Amylopsin), 729. Action of the 

 Lipolytic Enzyme (Lipase, Steapsin), 730. The Intestinal Secretion (Succus 

 Entericus), 731. Absorption in the Small Intestine, 733. Absorption of 

 Carbohydrates, 734. Absorption of Fats, 735. Absorption of Proteins, 737. 

 Digestion and Absorption in the Large Intestine, 738. Bacterial Action in 

 the Small Intestine, 739. Bacterial Action in the Large Intestine, 740. 

 Physiological Importance of Intestinal Putrefaction, 740. Composition of 

 the Feces, 741. 



CHAPTER XLIV. PHYSIOLOGY OF THE LIVER AND SPLEEN 743 



Structure of the Liver, 743. Composition of Bile, 744. The Bile Pigments, 

 745. The Bile Acids, 746. Cholesterin, 747. Lecithin, Fats, and Nucleo- 

 albumins, 748. Secretion of the Bile. 748. Ejection of the Bile Function of 

 the Gall-bladder, 749. Occlusion of the Bile-ducts, 751. Physiological Im- 

 portance of Bile, 751 . Occurrence of Glycogen, 752. Origin of Glycogen. 753. 

 Function of Glycogen. Glyrogenic Theory, 756. Glycogen in the Muscles and 

 Other Tissues, 757. Conditions Affecting the Supply of Glycogen, 757. For- 

 mation of Urea in the Liver, 758. Physiology of the Spleen, 759. 



