A compendium of the anatomy of the human body: intended principally for the use of students (Volume 2).

  • Fyfe, Andrew, 1754-1824.
Date:
1810
Catalogue details

Licence: Public Domain Mark

Credit: A compendium of the anatomy of the human body: intended principally for the use of students (Volume 2). Source: Wellcome Collection.

Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)

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    is termed by many Authors Cornea Lucida, to distin- guish it from the Sclerotica, named Cornea Opaca. It forms the anterior Pellucid Covering of the eye, ia more convex than the rest of the Ball, and is joined to the Tunica Sclerotica, like the Segment oi a small Sphere to that of a larger one. The convexity, however, v;irics in different persons, so as to form a short or long i Eve, according as the Cornea is more or less prominent. In a recent subject, it is hard dense, and transpa- but after maceration in water, it becomes soft and , and may be readily separated, especially in young Animals into a different Lamella:, the anterior of which is the continuation of the Tunica Adnata. l> a slight degree of putrefaction, it may also be . m the Tunica Sclerotica. In the Whale, the edge ol the Cornea is received in- to a distinct Groove formed by the Sclerotica. In a sound -tale, it has no Vessels which carry red Blood, though such are frequently seen on it when the - inflamed! Its nerves are too small to be traced ; yet it posses- site sensibility. It. collects the rajs of light, and transmits them to the protects tht. tender parts within it, and contains the Aqueous Humour. Iris. The Iris, v hit h is nam< d from being in some persons hi nt colours, is the only Coat which pos not on. It was d as a continuation of the id Coat, until described by Zinn, who shews that illy connected to this Coat by the medium of the n Circle. (1 at a little distance from the Cornea, be- il] waj behind the junction ol that Co:it with ilea, and running across, it forms a Septum, -ox anterioi ly ited in the middle 'b\ a'Hole, called the Pupil of the Eye. The term Pupil is a| it represents ob- jects nd large] than a Pupilla pr Puppet. Jn the rums, the V uj il is covered with a Vascular Membrane, teamed Mtmbrana Pupillaris, which gene-