General Anatomy, Applied to Physiology and Medicine, Vol. 3 (of 3)Bichat, Xavier
Science
General Anatomy, Applied to Physiology and Medicine, Vol. 3 (of 3)
Bichat, Xavier
Human anatomy; Human physiology
Some anatomists of this age have however thrown doubts upon these
glandular bodies. Lieutaud confounds them with the fatty cellular
texture. Desault did not distinguish them from it. Every thing confirms
me in the same opinion, which many considerations appear to establish
in an undoubted manner. The following are these considerations; 1st,
these reddish bunches are met with only in certain articulations. There
are many of them in which their existence cannot be established but by
supposition. 2d. The greatest number of the synovial membranes of the
tendons certainly do not exhibit any of them, though Havers, Albinus,
Juncke and Fourcroy admit them in all, founded no doubt upon analogy
and not upon inspection. Yet the synovia is separated equally in both
cases, and lubricates the surfaces of the articulations and of the
tendinous sheaths; this separation is then independent of glandular
action. 3d. If the best marked synovial glands are examined, such as
that of the cotyloid cavity, no trace can be discovered there of this
parenchyma of an unknown nature, but remarkable for its structure,
which composes in general the glands, and which distinguishes them
from every other part and forms their true organic character. 4th.
No excretory duct can be demonstrated in these organs. Those in the
form of fringes, admitted by Havers, are imaginary. Bertin himself
has acknowledged this truth, though he attributed to these bodies a
glandular structure. The transudation of the fluids injected by the
arteries in the neighbourhood of the articulation, proves the existence
of these ducts no better than it establishes them in the cavities of
the serous membranes in which it also takes place, and yet in which
it is well proved that no gland pours out the albuminous fluid
that constantly lubricates these cavities. 5th. Inflation resolves
completely these fatty bunches into cellular texture. Maceration
produces the same effect. When gradual and long continued ebullition
has removed all the fat from them, there remains only a mass of cells
pressed together, and similar to those of the common cellular texture.
6th. The glandular character is manifested in certain morbid cases, by
a peculiar swelling and hardening, of which the other organs except the
glands, such as the muscles, the tendons, &c. never offer an example.
The liver, the kidneys, the salivary organs, all the considerable
glands are remarkable for this. So true is this character, that it
serves to indicate glands, the delicacy of which conceals them in the
natural state. For example, the existence of the cryptæ of the stomach,
the urethra, and several other mucous membranes, is founded first upon
the analogy of the other membranes of this class, but principally upon
the preternatural development which these cryptæ acquire in certain
diseases. Never, on the contrary, do the pretended synovial glands
present to the observer a similar development. Always in the diseases
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