An Elementary Course of Practical Zoology
An Elementary Course of Practical Zoology
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In our eReader you can find the full English version of the book. Read An Elementary Course of Practical Zoology Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book An Elementary Course of Practical Zoology
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103 and 104, v. C), placed between the nephridia, whence it is taken to the kidneys themselves (Fig. 104, nph. V), thence by afferent branchial veins (af. Br. V) to the gills, and finally returned by efferent branchial veins (ef. Br. V) to the auricles. The mantle has a very extensive blood supply, and probably acts as the chief respiratory organ (p. 406) : its blood (art. 1 ) is returned directly to the auricles without passing through either the kidneys or the gills. The blood is colourless a...nd contains leucocytes. There is no communication between the blood-system and the pericardium.
The nervous system is formed on a type quite different from anything we have yet met with. On either side of the gullet is a small cerebro-pleural ganglion (Fig. 101, c. Pl. Gn\ united with its fellow of the opposite side by a nerve-cord, the cerebral commissure, passing above the gullet. Each cerebro-pleural ganglion also gives off a cord, the cerebro- pedal connective, which passes downwards and backwards to a pedal ganglion (pd.
What to read after An Elementary Course of Practical Zoology?
You can find similar books in the "Read Also" column, or choose other free books by T Jeffery Thomas Jeffery Parker to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
103 and 104, v. C), placed between the nephridia, whence it is taken to the kidneys themselves (Fig. 104, nph. V), thence by afferent branchial veins (af. Br. V) to the gills, and finally returned by efferent branchial veins (ef. Br. V) to the auricles. The mantle has a very extensive blood supply, and probably acts as the chief respiratory organ (p. 406) : its blood (art. 1 ) is returned directly to the auricles without passing through either the kidneys or the gills. The blood is colourless a...nd contains leucocytes. There is no communication between the blood-system and the pericardium.
The nervous system is formed on a type quite different from anything we have yet met with. On either side of the gullet is a small cerebro-pleural ganglion (Fig. 101, c. Pl. Gn\ united with its fellow of the opposite side by a nerve-cord, the cerebral commissure, passing above the gullet. Each cerebro-pleural ganglion also gives off a cord, the cerebro- pedal connective, which passes downwards and backwards to a pedal ganglion (pd.
What to read after An Elementary Course of Practical Zoology?
You can find similar books in the "Read Also" column, or choose other free books by T Jeffery Thomas Jeffery Parker to read onlineMoreLess
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