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The Structure of the Intrapulmonary Vasculature of the Domestic Fowl

  • A. S. King
  • D. Zoe King
  • M. A. Abdalla
Part of the Proceedings in Life Sciences book series (LIFE SCIENCES)

Summary

The walls of the small veins and arteries in the exchange tissue of the paleopulmo of the domestic fowl (G. domesticus) have been investigated by light and electron microscopy. The intra- and interparabronchial veins had one or two layers of thin smooth muscle cells devoid of nerve fibres. These vessels would have little capacity for regulating blood flow. The terminal arterioles possessed a single layer of non-innervated stout smooth muscle cells. The small interparabronchial arteries had two to four stout smooth muscle cells, innervated regularly but sparsely by noradrenergic, and perhaps also by cholinergic axons, in the adventitia. These arteries appeared capable of the local regulation of the microcirculation. One muscular valve was found in the opening of a small interparabronchial vein. The valve comprised two strong muscular components guarding a slit-like opening. The smooth muscle fibres in each component were arranged radially (dilator), with circular fibres (constrictor) at the base. This valve could have regulated the venous drainage from the vascular territory of about 5% to 10% of the length of two or three adjacent parabronchi of the longest type.

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References

  1. Abdalla, M.A., King, A.S.: The functional anatomy of the pulmonary circulation of the domestic fowl. Respir. Physiol. 23, 267–290 (1975)PubMedCrossRefGoogle Scholar
  2. Abdalla, M.A., King, A.S.: Pulmonary arteriovenous anastomoses in the avian lung: do they exist? Respir. Physiol. 27, 187–191 (1976)Google Scholar
  3. Akester, A.R.: The blood vascular system. In: Physiology and Biochemistry of the Domestic Fowl, Vol. II. Bell, D.J., Freeman, B.M. (eds.). London: Academic Press, 1971Google Scholar
  4. Baumel, J.J.: Systema cardiovasculare. In: Nomina Anatomica Avium. Baumel, J.J., King, A.S., Lucas, A.L. (eds.). London: Academic Press, 1978Google Scholar
  5. Bennett, T.: The adrenergic innervation of the pulmonary vasculature, the lung and the thoracic aorta, and on the presence of aortic bodies in the domestic fowl (Gallus gallus domesticus L.). Z. Zellforsch. 114, 117-134 (1971)Google Scholar
  6. Burnstock, G. Structure of smooth muscle and its innervation. In: Smooth Muscle. Bulbring. E., Brading, A.F., Jones, A.W., Tomita, T. (eds.). London: Arnold, 1970Google Scholar
  7. Duncker, H.-R.: The lung air sac system of birds. A contribution to the functional anatomy of the respiratory apparatus. Ergeb. Anat. Entwickl.-Gesch. 45, Heft 6, 1–171 (1971)Google Scholar
  8. Duncker, H.-R.: Structure of avian lungs. Respir. Physiol. 14, 44–63 (1972)PubMedCrossRefGoogle Scholar
  9. Duncker, H.-R.: Structure of the avian respiratory tract. Respir. Physiol. 22, 1–19 (1974)CrossRefGoogle Scholar
  10. Holle, J.P.,Heisler, N.,Scheid, P.: Effects of 02 and CO2on regional pulmonary blood flow in ducks. Pflüg.Arch.365,R20 (1976)Google Scholar
  11. King, A.S.: Aves respiratory system. In: Anatomy of Domestic Animals, Vol. 2. Getty, R „ Sisson, S., Grossman, J.D. (eds.). Philadelphia: Saunders, 1975Google Scholar
  12. Parry, K., Yates, M.S.: Observations with radioactive microspheres on vascular shunting across the avian pulmonary bed. J. Anat. Lond., in press (1978)Google Scholar
  13. Radu, C., Radu, L.: Le dispositif vasculaire du poumon chez les oiseaux domestiques (coq, dindon, oie, canard). Rev. Md. Vt. 122, 1219-1226 (1971)Google Scholar
  14. Rhodin, J.A.G.: The ultrastructure of mammalian arterioles and precapillary sphincters. J. Ultrastr. Res. 18, 181–223 (1967)CrossRefGoogle Scholar
  15. West, N.H., Bamford, O.S., Jones, D.R.: A scanning electron microscope study of the microvasculature of the avian lung. Cell Tiss. Res. 176, 553-564 (1977)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1978

Authors and Affiliations

  • A. S. King
    • 1
    • 2
  • D. Zoe King
    • 1
    • 2
  • M. A. Abdalla
    • 1
    • 2
  1. 1.Department of Veterinary AnatomyUniversity of LiverpoolLiverpoolGreat Britain
  2. 2.Faculty of Veterinary Science, Department of AnatomyUniversity of KhartoumKhartoum NorthSudan

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