Summary
The epithela of the three divisions (coprodaeum, urodaeum, proctodaeum) of the cloaca of the hen, and of the excretory ducts (colon, ureter, vagina) which join the divisions, are described using light microscopy, and scanning and transmission electron microscopy. Each region of the cloaca has its typical epithelium. Special attention is focussed in this study on the boundaries between the different epithelia. The coprodaeal epithelium does not differ considerably from that of the colon; a transitional zone is not visible. Distinct border zones, however, are observed between the other regions (ureter — urodaeum; vagina — urodaeum and proctodaeum; urodaeum-proctodaeum; proctodaeum — cutis). Although the vaginal opening is generally thought to lie in the urodaeum, our investigations show that at the vaginal opening into the cloaca the ciliated epithelium changes, on one border to a secretory epithelium characteristic of the urodaeum and on the other border to that characteristic of the proctodaeum. These observations are discussed in relation to functional aspects.
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References
Bargmann W (1977) Histologie und mikroskopische Anatomie des Menschen. Verlag Georg Thieme, Stuttgart
Bindslev N (1979) Sodium transport in the hen lower intestine. Induction of sodium sites in the brush border by a low sodium diet. J Physiol 288:449–466
Drenckhahn D, Steffens R, Gröschel-Stewart U (1980) Immunocytochemical localization of myosin in the brush border region of the intestinal epithelium. Cell Tissue Res 205:163–166
Gerhardt U (1967) Kloake und Begattungsorgane. In: Bolk L, Göppert E, Kallius Enbosch W (eds) Handbuch der vergleichenden Anatomie der Wirbeltiere. Verlag A Asher &Co, Amsterdam, pp 280
Grau H (1977) Anatomie der Hausvögel. In: Zietschmann O, Ackerknecht E, Grau H (eds) Ellenberger-Baum, Handbuch der vergleichenden Anatomie der Haustiere. Springer Verlag, Berlin Heidelberg New York, 18. Aufl. pp 1093
King AS, McLelland J (1978) Anatomie der Vögel (Grundzüge und vergleichende Aspekte). Verlag Eugen Ulmer, Stuttgart
Michel G, Junge D (1972) Zur mikroskopischen Anatomie der Niere bei Huhn und Ente. Anat Anz 131:124–134
Romeis B (1948) Mikroskopische Technik. Oldenbourg, München
Schrader Ch, Weyrauch KD (1976) Lichtmikroskopische, elektronenmikroskopische und histo-chemische Untersuchungen am Kloakenepithel des Haushuhns. Anat Anz 139:369–385
Schramm U, Dahm HH, Lange W (1980) Motile cells in the mucosa of the cloacal urodaeum and proctodaeum of the hen. An electron microscopic study. Cell Tissue Res 207:499–509
Schummer A (1973) Anatomie der Hausvögel. In: Nickel R, Schummer A, Seiferle E (eds) Lehrbuch der Anatomie der Haustiere. Verlag Paul Parey, Berlin Hamburg, Bd. V
Schwarze E, Schröder L (1979) Kompendium der Geflügelanatomie. VEB Verlag Gustav Fischer, Jena
Skadhauge E (1967) In vivo perfusion studies of the water and electrolyte resorption in the cloaca of the fowl (Gallus domesticus). Comp Biochem Physiol 23:483–501
Skadhauge E (1976) Cloacal absorption of urine in birds. Comp Biochem Physiol 55A:93–98
Skadhauge E, Thomas DH (1979) Transepithelial transport of K+, NH4 +, inorganic phosphate and water by hen (Gallus domesticus) lower intestine (colon and coprodeum) perfused luminally in vivo. Pflügers Archiv 379:237–243
Thomas DH, Skadhauge E (1979) Dietary Na+ effects on transepithelial transport of NaCl by hen (Gallus domesticus) lower intestine (colon and coprodeum) perfused luminally in vivo. Pflügers Archiv 379:229–236
Vogel G, Gärtner K (1976) Physiologie der Niere; Wasser- und Elektrolythaushalt. In: Scheunert A, Trautmann A (eds) Lehrbuch der Veterinär-Physiologie. Verlag Paul Parey, Berlin Hamburg, pp 698–702
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Dahm, H.H., Schramm, U. & Lange, W. Scanning and transmission electron microscopic observations of the cloacal epithelia of the domestic fowl. Cell Tissue Res. 211, 83–93 (1980). https://doi.org/10.1007/BF00233725
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DOI: https://doi.org/10.1007/BF00233725