scholarly journals The reactions of the blood vessels of the human calf to increases in transmural pressure

1956 ◽  
Vol 134 (3) ◽  
pp. 665-674 ◽  
Author(s):  
D. R. Coles ◽  
B. S. L. Kidd ◽  
G. C. Patterson
Keyword(s):  
Blood Vessels ◽  
Transmural Pressure ◽  
Human Calf

scholarly journals The increase in tone in forearm resistance blood vessels exposed to increased transmural pressure

1959 ◽  
Vol 149 (3) ◽  
pp. 614-625 ◽  
Author(s):  
D. A. Blair ◽  
W. E. Glover ◽  
A. D. M. Greenfield ◽  
I. C. Roddie
Keyword(s):  
Blood Vessels ◽  
Transmural Pressure

Elasticity of arterioles and venules in postmortem human lungs

1988 ◽  
Vol 64 (2) ◽  
pp. 611-619 ◽  
Author(s):  
R. T. Yen ◽  
S. S. Sobin
Keyword(s):  
Blood Vessels ◽  
Vascular System ◽  
Vessel Diameter ◽  
Transmural Pressure ◽  
Formaldehyde Solution ◽  
Branching Order ◽  
Human Lungs ◽  
Compliance Coefficient ◽  
Vascular Elasticity ◽  
Different Levels

The elasticity and branching order of noncapillary microscopic blood vessels less than 100 microns diam were studied in human lungs obtained 7–30 h postmortem, using a silicone elastomer method that selectively filled pulmonary arterioles or venules. The lungs were inflated to 10 cmH2O pressure and a gradient of transmural vascular pressure of 0–17 cm H2O, from lobe base to apex, was established in the silicone-filled vascular system. Histological materials were obtained after airway fixation by formaldehyde solution and analyzed for vessel diameter in the branching order of 1, 2, and 3, with the smallest noncapillary vessel designated as order 1, in accord with the Strahler system. The change in vessel diameter within a branching order at different levels of transmural pressure is a derived measure of vascular elasticity expressed as compliance coefficient alpha, alpha Values are 0.128, 0.164, and 0.210 micron/cmH2O or 0.682, 0.472, and 0.354%/cmH2O, respectively, of orders 1–3 for arterioles and 0.187, 0.215, and 0.250 micron/cmH2O or 0.992, 0.612, and 0.424%/cmH2O, respectively, of orders 1–3 for venules. The percent is normalized with D0, which is the value of diameter (D) when the transmural pressure is zero. These data are compared with those for the cat where alpha = 0.274 for similar juxta-alveolar vessels.

Author response for "Hemovasculogenic origin of blood vessels in the developing mouse brain"

2020 ◽  
Author(s):  
Miguel A. Gama Sosa ◽  
Rita De Gasperi ◽  
Gissel M. Perez ◽  
Patrick R. Hof ◽  
Gregory A. Elder
Keyword(s):  
Blood Vessels ◽  
Mouse Brain ◽  
Author Response ◽  
Developing Mouse Brain
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