Accession Number : AD0770258

Title :   Neural and Hormonal Control of Femoral Vein Mechanical Properties.

Descriptive Note : Final rept. Oct 69-Jul 72,

Corporate Author : SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX

Personal Author(s) : Morris,Thomas W. ; Abbrecht,Peter H. ; Leverett,Sidney D. , Jr

Report Date : OCT 1973

Pagination or Media Count : 93

Abstract : Femoral vein smooth muscle is controlled by circulating catecholamines and innervation by the sympathetic nervous system. In this study the dog fermoral vein diameter-pressure relationships have been measured in vivo using radiographic imaging of the vein and a servo infusion system to control venous pressure. Changes in the nonlinear diameter-pressure relationship were observed with smooth muscle constriction and with location along the vein. (Modified author abstract)

Descriptors :   *Veins, *Muscles, *Blood pressure, *Catecholamines, *Sympathetic nervous system, Contraction, Blood volume, Legs, Dogs, Biomechanics, Acceleration tolerance, Stress(Physiology), Hormones, Experimental data

Subject Categories : Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE