Orthostasis, which involves changing from the recumbent to the upright posture, brings the considerable force of gravity to bear on the vascular bed. In man, the distance from the thorax to the mid thigh is approximately 90 cms. Thus a pressure head of 90 cms water develops in the thigh veins which, in recumbency, are distended by a pressure of, at most, 20 cms water. The thighs and buttocks can accomodate very considerable amounts of blood at such pressures.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.109979 |
| Date | January 1955 |
| Creators | Henry, James. P. |
| Contributors | Rose, B. (Supervisor) |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Doctor of Philosophy. (Department of Health Sciences.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: NNNNNNNNN, Theses scanned by McGill Library. |
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