Notes on physiology / by Henry Ashby.

  • Henry Ashby
Date:
1889
Catalogue details

Licence: Public Domain Mark

Credit: Notes on physiology / by Henry Ashby. Source: Wellcome Collection.

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    {c) Fibrinogen exists in blood, pericardial, pleural, and hydrocele fluids. It closely resembles paraglobulin, but, when thrown down by CO2, it is less flocculent and more viscous. {d) Myosin is present in dead muscle. It is not so soluble as flbrinoplastin. It is converted into syntonin by dissolving in HCl. {e) Vitellin exists in yolk of egg ; it is soluble in dilute NaCl solutions, but differs from other members of the group in not being precipitated by saturating with NaCl. 3. Fibrin is obtained by whipping freshly-drawn blood. It forms tough, white strings, which are in- soluble in water and dilute NaCl solution ; is con- verted into syntonin by digestion with HCl. 4. Peptones are distinguished from other albu- minous bodies by not being precipitated by boiling, acids, or by potass, ferrocyanide and acetic acid. A trace of copper sulphate with excess of caustic soda produces a rose colour. They diffuse through animal membranes. They are precipitated by tannin, iodine, and acetate of lead. Several different peptones exist. VI. The Albuminoids or Gelatinous Bodies. These substances, which occur as the principal con- stituents of many tissues, resemble the albuminous bodies in their composition, but differ from them in many of their reactions. They include— 1. Mucin. 3. Chondrin* 2. Gelatin. 4. Elastin. I. Mucin is found in foetal connective tissue and in tendons. It occurs also in the mucous secretions, saliva, bile, gastric juice, &c., giving them their ropy consistence. It is not coagulated by boiling. It is c
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