Rare case of the accessory radial artery.

The accessory radial artery passed laterally to the brachial artery and then radial artery, and finally it anastomosed with the princeps pollicis artery.

Rare cases of arteries branching directly from aortic arch in the man.

In the autopsy material of 118 human cadavers (67 males and 51 females), conserved in 10% formaldehyde, two cases were found in which abnormal arteries originated directly from the aortic arch. In the first case the right subclavian artery branched off the aortic arch below the left subclavian artery. In the second case, the sequence in which large arteries branched off was as follows: brachiocephalic trunk, left common carotid artery, left vertebral artery, left subclavian artery. The vascular anomalies were confronted with clinical symptoms documented in case history and in laboratory results.

[Vascularization of the lumbar spine in the human fetus]. / Unaczynienie odcinka ledzwiowego kregoslupa u plodów ludzkich.

The vascularization of the lumbar spine has been studied in 19 human fetuses of both sexes after filling of the arterial system with Micropaque. Structural radiographs were taken and lumbar arteries with their branches were marked in every segment examined. The frequency of branches incidence was described. The differences in vascularization between left and right side of the lumbar spine within medullar arteries and articular processes arteries amounted to 20 and 5 per cent respectively.

Lack of effect of gold salts on acetylcholine or histamine contraction of canine tracheal and bronchial smooth muscle.

In vitro gold salt incubation with proximal and distal canine airway smooth muscle was compared to untreated canine airway muscle with respect to histamine and acetylcholine-induced contraction. Gold chloride and gold sodium thiomalate had no effect on either proximal or distal canine airway smooth muscle agonist-induced contraction. Gold chloride in concentrations greater than 10(-5) M had a direct contractile effect. These results differ from previous studies which showed an inhibition of the histamine response of guinea-pig tracheal smooth muscle following in vitro preincubation with gold salts. This difference suggests that the mechanism(s) of the beneficial effects of long-term gold salt therapy on human asthma cannot be reliably studied with short-term in vitro animal preparations without first assessing species differences with respect to the effects of therapeutic agents. Human airway smooth muscle preparations would be the best means of addressing this question.