A dictionary of terms used in medicine and the collateral sciences / by the late Richard D. Hoblyn.

  • Richard Hoblyn
Date:
1887
Catalogue details

Licence: Public Domain Mark

Credit: A dictionary of terms used in medicine and the collateral sciences / by the late Richard D. Hoblyn. Source: Wellcome Collection.

Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.

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    food, in the form of chyle, with the blood, Prout gave the name primary assimilation. 2. To the Bubsequent changes in the capil- laries, and those connected with the formation and modification of the lymph, he gave the name secondary assimilation. ASSO'OIATE MOVEMENTS. Consensual Movements. Those movements M'hich, contrary to our will, accompany other, voluntary, movements, those connected by habit or sympathy. Thus, the eye cannot be moved inwards, by the action of the rectus internus, without contraction of the iris being produced. ASTEATO'DES (a, priv., (rrea- TdliSr]s, tallowy). A term denoting deficiency in the sebaceous secre- tion ; deficient action of the seba- ceous glands. A'STEE (aar-fip, a star). The name applied to the star-like body, of which two are produced, seen during cell-multiplication. See Cell. ASTHENI'A {k,78^veia, want of strength). A failure or loss of strength. A'STHENIC DISEASES {aaOi- vikSs, weakly; aaBevris, weak, from a, priv., crBefos, strength). Diseases characterized by want of vigour. The term asthenic is nearly synonymous with the words typhoid and adynamic. See Sthenic. ASTHENO'PIA (d.ae^i'^s, weak, the eye). Weak sight, weak- ness of the eyes. Muscular as- thenopia, imperfect convergence of the eyes from weakness of the internal recti; accommodative as- thenopia, weakness of the ciliary muscle from over-use in hj^er- mctropic patients ; retinal asthen- opia is due to hypertesthesia of the retina. A'STHMA (ka-e^dCw, to breathe heavily). Dyspnoea occurring in paroxysms, with intervals of free- dom of respiration. Humoral asthma, or bronchorrhoea, is cha- racterized by bronchial flux ; con- gestive asthma, or dry catarrh, by scanty expectoration; spasmodic asthma, by presumed spasmodic action of the muscular fibres of the air-tubes ; hay-asthma, by the peculiarities of hay-fever; and hysteric asthma, by extraordinary frequency of the respirations, with perfectly healthy sound of the chest and breathing. Asthma cultrariorum is Grinders' asthma ; asthma metallariorum, Miners' asthma. ASTI'GMATISM (a, priv., (rrly- fj-a, a spot). A term applied by Dr. Donders to the phenomena which result from an inequality of the refractive media of the eye; the rays of a cone of light do not all come to a focus at one point on the retina; this is chiefly due to the fact that the cornea is more highly refractive in the vertical than in the horizontal meridian. If, when accommodation is para- lyzed by atropine, a vertical line be seen more clearly than a hori- zontal one, then the horizontal meridian is the more defective of the two. 1. Simple astigmatism, where one meridian is emmetropic, and that at right angles myopic or hypermetropic. 2. Compound myopic and com- pound hypermetropic astigmatism, when the meridia are either un- equally myopic, or unequally hypermetropic. 3. Mixed astigmatism, when one meridian is myopic, and the other hypermeti-opic. 4. Lenticular astigmatism arises from an inequality in the cm-ves
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