+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

The response of capillary endothelium to changes in intravascular pressure, as seen in the rabbit s ear chamber

, : The response of capillary endothelium to changes in intravascular pressure, as seen in the rabbit s ear chamber. Australian Jour Exptl Biol 31(5): 533-544

In a series of ten rabbits, the capillaries in certain areas of thin-tissue chambers were constricted to varying degrees following compression of the central artery of the ear, and responded instantly to changes in intravascular pressure. Sympathectomy did not influence this response. Capillaries in some areas in four 8-week old chambers showed similar responses of constriction and endothelial nuclear prominence to compression of the central artery of the ear, compression of the common carotid artery and stimulation of the cervical sympathetic trunk. Lowering the intravascular pressure produced changes in form in the larger vessels of the preformed tissue. Resulting stresses in the fibrous tissue were transmitted to the vessels of the thin tissue under observation, thus invalidating this technique where quantitative relationships are sought between vascular diams. and intravascular pressures. It is concluded that capillary responses are passive only, detd. by the elasticity of the endothelial wall, the intravascular pressure, and the mechanical stresses in the surrounding tissues. Attempts were made to develop the technique of supra-vital methylene blue staining of nerves, but the results were inconstant. One nerve fiber was stained and photographed in relation to a capillary.


PMID: 13115314

Other references

Thomas, L., 1994: What if the 'giants' were cured?. Elderly Care 6(2): 5-5

Old, M.C., 1936: Yucatan fresh-water sponges. Publications of the Carnegie Institution, 457: 29

Perry, K.G.; Roberts, W.E.; Martin, R.W.; Magann, E.F.; Sullivan, D.L.; Morrison, J.C., 1998: Comparison of intra-amniotic (15S)-15-methyl-PGF2 alpha and intravaginal prostaglandin E2 for second-trimester uterine evacuation. To compare the efficacy, safety, and side effects of intra-amniotic (15S)-15-methyl prostaglandin F2 alpha (15-M-PGF2 alpha) and intravaginal prostaglandin E2 (PGE2) for midtrimester uterine evacuation. Ninety-three patients underwent therapeutic...

Jones, S.A.; Miller, H.J.; Rogers, T.R.; Kirk, N.R.; Dulake, C.; Zamiri, I., 1984: An experience of diphtheria in Westminster. Public Health 98(1): 3-7

Charity, R.M.; Foukas, A.F., 2005: Osteomyelitis and secondary septic arthritis caused by Sphingomonas paucimobilis. We describe a case of osteomyelitis and secondary septic arthritis caused by Sphingomonas paucimobilis in an immunosupressed adolescent which did not present typically, leading to a delay in diagnosis. This case highlights the need to thoroughly i...

Barat, P.; Busnel, A.; Boulard, S.; Joseph, M.G.; Dubourg, H.; Delmas, C., 2005: Schooling of children with diabetes mellitus followed in the department of paediatrics of Bordeaux. Archives de Pediatrie 12(2): 214-215

Atladóttir, H.Ó.; Schendel, D.E.; Henriksen, T.B.; Hjort, L.; Parner, E.T., 2015: Gestational Age and Autism Spectrum Disorder: Trends in Risk Over Time. Autism Spectrum Disorder (ASD) is a serious neurodevelopmental disorder. Several previous studies have identified preterm birth as a risk factor for ASD but none has studied whether the association between gestational age and ASD has changed over...

Schmidt, D., 1992: Why do we need new antiepileptic drugs?. Aktuelle Neurologie 19(SPEC ISSUE 1): S2-S3

Bleichner, G.; Squara, P.; Parent, A., 1981: Hypertonia and malignant hyperthermia due to morphine and neuroleptic. Lancet 1(8216): 386-387

Walter M.R.; Preiss W.V., 1972: Distribution of Stromatolites in the Precambrian and Cambrian of Australia. Correlation with USSR, South Africa, North America.