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Updated: June 29, 2025
The SECOND is that of RESPIRATION: like volition, the motive influence in respiration passes in a DIRECT LINE from one point of the nervous system to certain muscles; but as voluntary motion seems to originate in the cerebrum, so the respiratory motions originate in the medulla oblongata: like the voluntary motions, the motions of respirations are spontaneous; they continue, at least, after the eighth pair of nerves have been divided.
"I got that bit of radium from the base of the collar button of Hartley Haughton," replied Kennedy quietly, "a collar button which some one intimate with him had substituted for his own, bringing that deadly radium with only the minutest protection of a thin strip of metal close to the back of his neck, near the spinal cord and the medulla oblongata which controls blood pressure.
Whereupon the cold circle left Casey's medulla oblongata and a long-faced, long-legged youth stepped somewhat hastily to one side. "Paw, you ol' fool, you, get your finger off'n that trigger whilst you're aimin' at me!" he exclaimed pettishly. "I wa'n't aimin' at you. I was aimin' at this 'ere " Casey heard himself called many names, any one of which was good for a fight when Casey was free.
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.
If the relation was a reflex, it would have to be classed now as one of those local nerve circuits, which are pretty common among the viscera, a local call and reply as it were, without mediation of the great long distance trunk lines in the spinal cord and the medulla oblongata. The work of Bayliss and Starling, two English physiologists, was commenced then to test the hypothesis.
In the course of these studies Flourens discovered that in the medulla oblongata, the part of the brain which connects that organ with the spinal cord, there is a centre of minute size which cannot be injured in the least without causing the instant death of the animal operated upon.
The brain is a great mass of nerve tissue, and consists of three parts, viz., the Cerebrum or brain proper, which occupies the upper, front, middle and back portion of the skull; the Cerebellum, or "little brain," which fills the lower and back portion of the skull; and the Medulla Oblongata, which Is the broadened commencement of the spinal cord, lying before and in front of the Cerebellum.
The even rhythm of the breathing of every one of us depends upon the structural integrity of a particular region of the medulla oblongata, as much as the ticking of a clock depends upon the integrity of the escapement. You may take away the hands of a clock and break up its striking machinery, but it will still tick; and a man may be unable to feel, speak, or move, and yet he will breathe.
The size of each organ is estimated, not by feeling for bumps or depressions, but by measuring the length of the fibres of the brain from their common center in the medulla oblongata, at the head of the spinal column, and at a point equi-distant from the ears in the interior of the head.
Antiquity unfolded; scene by scene, I saw the divine drama that Christ once played for the ages. On to Egypt, with its modern Cairo and ancient pyramids. Then a boat down the narrow Red Sea, over the vasty Arabian Sea; lo, India! Wright, kept a travel diary. The invisible power flows into the human body through the gate of the medulla oblongata.
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