On the Structure and Development of the Cysticercus cellulosae, as Found in the Pig, by George Rainey

function of nutrition is chiefly performed, & therefore that it is entitled, as well in a physiological as in anatomical sense to the appellation of ventral portion. The neck is a tubular projection from the middle of the ventral portion; its form is somewhat pyramidal, & at its free extremity it presents a quadrilateral enlargement whose terminal surface is occupied by four circular discs, & a ring of hooklets. See Plate 1. fig: 1(b) & fig: 2. Its length varies very much in different cysticerci according to their age, this part continuing to increase in size after the other parts have ac quired certain fixed dimensions. The membraneous parietes of the neck are of considerable strength & thickness, & present two orders of fibres, namely, a longitudi nal or superficial set, & a transverse or deep one. These are connected by a transparent material which composes the chief thickness of the membrane, which is deeply wrinkled transversely, & thus formed internally into a number of transverse sacculi. The cavity of neck does not communicate di rectly by any visible opening with that of the ventral portion. It is almost completely filled with oval laminated particles of earthy matter resembling minute calculi (see Plate 1. fig: 3) which effervesce briskly when put into diluted
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Manuscript details
- Author
- George Rainey
- Reference
- PT/56/8
- Series
- PT
- Date
- 1857
- IIIF
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Cite as
On the Structure and Development of the Cysticercus cellulosae, as Found in the Pig, by George Rainey, 1857. From The Royal Society, PT/56/8
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