Practical medicine and medical diagnosis / by Byrom Bramwell.

  • Byrom Bramwell
Date:
1887
Catalogue details

Licence: Public Domain Mark

Credit: Practical medicine and medical diagnosis / by Byrom Bramwell. Source: Wellcome Collection.

    49/164 (page 41)
    children, for undoubtedly some marriages, which are exceedingly in- judicious from a health point of view, would thereby be prevented. In some cases hereditary disease chiefly affects the males of a family, but is transmitted for the most part through the females (see fig. 3); gout, the hemorrhagic diathesis, and pseudo-hypertrophic paralysis are excellent illustrations. The term atavism (from the Latin atavus, a forefather) is given to the condition in which there is the re-appearance in an individual of some anatomical, physiological, or pathological con- dition which was present in an ancestor, not the immediate parent. YEATON. Son, bleeder. Daughter. Daughter. Daughter. Daughter. Daughter. Son, bleeder. Three daughters. I Son, bleeder. Son, bleeder. Daughter; Daughter, children not bleeders. Son, bleeder. Daughter. Daughter. I I Son, bleeder. | | One son Four daughters, bled to death. Son, bleeder. Daughter. Daughter. Daugliter. I I I Twin boys, bleeders. Son, not a bleeder. Son, not a bleeder. Son, a bleeder. Son, bleeder. Daughter. Fifi. 3.—Chart showhu/ the hereditary transmission of Hamophilia in the Yeatoii family. (After Gould.y In many cases it is not, of course, the actual disease which is trans- mitted from parent to child, but a tendency to be affected by some ex- citing cause or morbid stimidus which is incapable of acting upon the ordinary run of persons. It is probable, for example, that phthisis is only hereditary in this sense, that a peculiar weakness or vulnerability of lung tissue is transmitted, that this predisposes the individual to attacks of pulmonary catarrh, and that a suitable local condition or nidus, in which the tubercle bacillus (which those of us who live in ' Copied from Pepper's System of Medicine, vol iii. p. 933.