The sthenics : the chord invisible / by Sir James K. Fowler.

  • Fowler, James Kingston, Sir, 1852-1934.
Date:
1930
Catalogue details

Licence: In copyright

Credit: The sthenics : the chord invisible / by Sir James K. Fowler. Source: Wellcome Collection.

    88/96 (page 78)
    The first advance in knowledge was made when it was shown that the function of the outer part—the cortex, differed from that of the central portion—the medulla, and it is from the medulla that the extract now known as adrenin, or adrenalin, is derived. One of its chief functions is to increase the pressure of the blood in the vessels. Now¬ adays everyone knows all about blood- pressure, and a very large number, under the impression that it is the name of a disease, believe themselves to be suffering from it. They may be interested to learn that in 1874 my revered master, Sir George Johnson, taught so little else that I was then tired of blood-pressure. It has been shown that in times of great emotion and excitement the amount of adrenal secretion poured into the blood is very greatly increased and that it acts as a stimulant to the muscular system. It may indirectly paralyse the contraction of the