Part 73

Remarks upon the secreted fluids.—They can re-enter the circulation.—Various experiments on this subject.—Consequences. 208

Structure of the excretories.—Internal membrane.—External texture. 213

II. Parts common to the Organization of the Glandular System.

Cellular Texture.—Division of the glands into two classes, in regard to this texture.—Serum and fat of this texture.—Fatty livers. 214

Blood vessels.—Different ways in which they enter the glands, according as they are or are not surrounded with membranes.—Course of the arteries in the glands.—Veins.—They pour their blood into the general black blood.—Reflux from the heart to the glands. 216

Of the blood of the glands.—Division of the glands into three classes, as it regards the fluid which penetrates them.—Great quantity of blood contained in the liver and the kidney.—Variety as it respects secretion. 219

Nerves.—Of those of the ganglions and of the cerebral ones.—Their proportion.—How they enter the glands.—Secretion is independent of nervous influence. 221

Exhalants and absorbents. 223

ARTICLE THIRD.

PROPERTIES OF THE GLANDULAR SYSTEM.

I. Properties of Texture.

They are inconsiderable.—Proofs.—New remarks upon the reflux of the black blood in the glands. 224

II. Vital Properties.

Properties of animal life.—Experiments upon animal sensibility.—Varieties of the results. 226

Properties of organic life.—The insensible contractility and the corresponding sensibility are the predominant ones.—Their influence upon secretion.—Varieties of the secreted fluids.—Organic affections of the glands.—Remarks. 227

Sympathies. 230

Passive sympathies.—Various examples.—Sympathies the causes of which act at the extremity of the excretories.—Influence of the passive sympathies of the glands in diseases.—Remark upon that of each gland.

Active Sympathies.—Various remarks.

Characters of the vital properties. 235

First character.—Life peculiar to each gland.—Proofs of this peculiar life.—Of its influence in a state of health and disease.

Second character.—Remission of the glandular life.—The glands have a species of sleep.—Various examples. 238

Third character.—The glandular life is never simultaneously raised in the whole system.—Application of this remark to the digestive order.—Advantage of the artificial excitement of the glands in diseases. 239

Fourth character.—Influence of climate and season upon the glandular life.—The sweat and many secreted fluids are opposite to each other in this respect. 241

Fifth character.—Influence of sex upon the glandular life. 242

ARTICLE FOURTH.

DEVELOPMENT OF THE GLANDULAR SYSTEM.

I. State of this System in the Fœtus.

The glands are very conspicuous at this age.—Yet the secretions are not great. 243