Morphological studies on the venous drainage of the trachea in the neck of sheep.

R. E. Barrow, J. Maguire, S. E. Morris, D. L. Traber, David Herndon

Research output: Contribution to journalArticle

Abstract

Systemic venous drainage of the cervical portion of the trachea from the cricoid cartilage to the sternal notch was observed in 50 adult sheep. In all animals, the first five to six tracheal rings starting at the cricoid cartilage were drained by the thyroid veins (v. thyroideae) bilaterally to the external jugular veins (v. jugularis externa). A venous complex draining the remaining cervical portion of the trachea was observed only on the left side of the trachea. This complex drained to the cranial vena cava (vena cava cranialis). India ink or Evans blue dye were infused into small vessels draining this area for verification. Variations in this venous complex were classified into three types based upon length of trachea drained. Type I was found in 26%, type II found in 58%, and type III found in 16% of the sheep studied and drained 23 +/- 5%, 58 +/- 11% and 78 +/- 10% of the cervical portion of the trachea, respectively. Blood flow from this area of the trachea was 85 +/- 28 mL/min/100 g wet issue. This study identified and classified the venous drainage of the cervical portion of the trachea in sheep.

Original languageEnglish (US)
Pages (from-to)255-258
Number of pages4
JournalCanadian journal of veterinary research = Revue canadienne de recherche veterinaire
Volume53
Issue number3
StatePublished - Jul 1989

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Trachea
neck
Drainage
vena cava
Sheep
drainage
Neck
sheep
cartilage
Cricoid Cartilage
jugular vein
Venae Cavae
blood flow
dyes
India
Evans Blue
Jugular Veins
animals
Veins
Thyroid Gland

ASJC Scopus subject areas

  • veterinary(all)

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Morphological studies on the venous drainage of the trachea in the neck of sheep. / Barrow, R. E.; Maguire, J.; Morris, S. E.; Traber, D. L.; Herndon, David.

In: Canadian journal of veterinary research = Revue canadienne de recherche veterinaire, Vol. 53, No. 3, 07.1989, p. 255-258.

Research output: Contribution to journalArticle

Barrow, R. E. ; Maguire, J. ; Morris, S. E. ; Traber, D. L. ; Herndon, David. / Morphological studies on the venous drainage of the trachea in the neck of sheep. In: Canadian journal of veterinary research = Revue canadienne de recherche veterinaire. 1989 ; Vol. 53, No. 3. pp. 255-258.
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