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Updated: September 23, 2025
This living, surgical cement, elastic, self-moulding, soothing, not only plugs the cut or torn mouths of the blood-vessels, but fills the gap of the wound level with the surface. Here, by contact with the air and in combination with the hairs of the animal it forms a tough, firm, protective coating or scab, completely shutting out cold, heat, irritants, or infectious germs.
On the contrary, they include changes and movements in all of the so-called involuntary muscles, and in every kind of bodily structure. They include changes and movements in every part of the physical organism, from changes in the action of heart, lungs, stomach, liver and other viscera, to changes in the secretions of glands and in the caliber of the tiniest blood-vessels.
There is a Trinity in the body the heart and blood-vessels; the organs of respiration; the nerves, the instruments of sensation; these three departments are the three moving principles of nature continually acting for the support of life.
Not so with the whale; one of whose peculiarities it is, to have an entire non-valvular structure of the blood-vessels, so that when pierced even by so small a point as a harpoon, a deadly drain is at once begun upon his whole arterial system; and when this is heightened by the extraordinary pressure of water at a great distance below the surface, his life may be said to pour from him in incessant streams.
It is crowded with blood-vessels, which divide and subdivide very minutely before they penetrate the brain. The membranes of the brain are sometimes the seat of inflammation, a serious and painful disease, commonly known as brain fever. The Medulla Oblongata. This is the thick upper part of the spinal cord, lying within the cavity of the skull.
In the kidneys, as elsewhere, the vaso-motor nerves are distributed to the walls of the blood-vessels, and modify the quantity and the pressure of blood in these organs. Thus, some strong emotion, like fear or undue anxiety, increases the blood-pressure, drives more blood to the kidneys, and causes a larger flow of watery secretion.
Then let them wear as sensible hats as possible, avoiding those that exert great pressure on the blood-vessels that feed the scalp. Thus they will not only be able to retain their hair much longer than otherwise, but the hair that is well fed does not fade as early as that which lives on half rations. In the case of preserving the hair, an ounce of prevention is worth a ton of cure.
The stream of feeling which constitutes the undertow of consciousness originates outside of the brain altogether, and is composed of currents arising from viscera, muscles, blood-vessels and glands. Now the component currents are of different sizes and positions and variable degrees of warmth.
The small blood-vessels are themselves provided with circular muscular fibres, whose contraction necessarily draws the walls of the vessels together, obliterates their canal, and shuts out the blood.
The fetal blood, on the other hand, is first in the child's body, then in the villi, and then returns to the child again. It never enters the blood-vessels of the mother but passes to and from the placenta as long as pregnancy lasts.
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