Part 53

Different proportions of blood in the capillaries, according as the secretions and exhalations are active or passive.—Of active and passive exhalations.—Of secretions of the same nature.—Examination of each.—Proofs that wherever there is activity, blood enters the capillaries.—Opposite arrangement in the passive phenomena. 13

Consequences of the preceding Remarks. 17

IV. Of the Anastomoses of the General Capillary System.

Mode of these anastomoses.—The capillaries considered in relation to the vessels with which they communicate.—Influence of these communications.—Important observation in regard to the examination of dead bodies.—How acute inflammations disappear at death. 17

V. How, notwithstanding the general communication of the Capillary System, the Blood and the Fluids differing from it, remain separate.

This depends on the different modifications of the organic sensibility.—Proofs.—General remarks. 21

VI. Consequences of the preceding principles, in relation to Inflammation.

Every thing arises, in this affection, from the alteration of the organic sensibility.—Proofs.—Varieties of intensity and nature in inflammations.—Terminations of inflammations.—Of putrefaction.—Of death.—Of induration.—Of the blood which stops in inflamed parts. 24

Differences of inflammation according to the different systems.—Each has a peculiar one.—Of those which are the most disposed to it.—It has peculiar modifications in each.—Same observation in regard to its terminations. 30

VII. Structure and Properties of the Capillaries.

We cannot ascertain completely the structure.—It has however varieties. 33

VIII. Of the Circulation of the Capillaries.

Motions of the fluids in the Capillary System.—The blood is independent of the action of the heart in the capillaries.—Various proofs of this assertion.—The blood circulates by the influence of the forces of the part.—Varieties of the motions.—Causes of these varieties.—Influence of the atmosphere upon the capillary circulation.—Of the two kinds of bleeding in relation to the capillaries and to the trunks.—Circulation of other fluids than the blood in the capillaries. 34

Phenomena of the alteration of the fluids in the Capillary System.—Change of the red blood to black.—Phenomena of this change. 41

IX. Of the Capillaries considered as the seat of the production of Heat.

Different hypotheses.—Phenomena of animal heat.—How it is produced.—Analogy of the production of heat with exhalation, secretion, &c.—Influence of the different vital forces.—Explanation of the phenomena of animal heat in the state of health and disease.—Sympathetic heat.—Sympathies of heat.—Difference between the two. 43

ARTICLE SECOND.

PULMONARY CAPILLARY SYSTEM.

I. Relation of the two Capillary Systems, Pulmonary and General.

How all the blood of the general system can go through the pulmonary.—Difference of one from the other as it respects the course of this fluid. 55

II. Remarks upon the Circulation of the Pulmonary Capillaries.

Peculiar character of pulmonary inflammations.—Phenomena to which they give rise.—Of the pulmonary circulation in various other diseases. 58

III. Alteration of the Blood in the Pulmonary Capillaries. 63

IV. Remarks upon the state of the Lungs in Dead Bodies.

Their proportions very various from engorgement.—They are hardly ever in the natural state.—Why.—Consequences. 64

EXHALANT SYSTEM.

General Remarks upon the differences of exhalations and absorptions. 67

ARTICLE FIRST.