The other organs

The other organs

Cell Migration from the Thymus to Other Lyinphoid Organs

T HE IMPORTANCE of the thymust in immunobiology was first shown in neonatally thymectomized rabbits and mice.3’25’48 Thymectomy after the neonatal period in these animals is not followed by any dramatic consequences. How the thymus exerts its influence upon the other lymphoid organs is not clear. There is evidence both for the existence of humoral factor( s ) of thymus origin10’38’43’53’54 and ...

Blood capillaries of the heart and other organs.

T HERE ARE, I believe, a good number of reasons for a renewed interest in problems of capillary permeability. To begin with, it is clear that we are dealing with a basic process in the physiology of metazoa. In these complex organisms, the life of the multitude of cells in the intimacy of tissue depends, in ultimate analysis, on the ample and continuous exchanges that take place across the wall...

Presence of asbestos bodies in organs other than the lung.

This study was designed to test the hypothesis that subjects with many asbestos bodies in their lungs at autopsy would also have asbestos bodies in various other organs. The subjects included 19 cases with diagnosis of asbestosis at death (two of these had mesothelioma, five had lung cancer) and 18 with pleural plaques but not asbestosis. Occupational histories were obtained from relatives. In ...

The Antennal Pulsating Organs of Mosquitoes and other Diptera

The antennal pulsating organ of mosquitoes consists of two vesicles, each sending a blood-vessel to the antenna of its side and each connected to the aorta by a muscle. Contraction of the muscle causes blood to enter the vesicle through a valve and relaxation allows an elastic contraction of the vesicle so that the blood is discharged through the blood-vessel to the antenna. The organ appears t...