Wednesday, March 7, 2007

The Basic Components Of This System Are A

The basic components of this system are a bark of adrenal glands which develops a protection hormone - , a hypophysis which develops , regulating production , and, at last, , supervising secretion (fig. 3). All this three is in one team, obeying feedback mechanism drives. For example, if in blood concentration it on the mechanism of a negative feedback brakes activity raises, means, production of the regulator-kortikotropina. As a result production adrenal glands decreases. Presence of such interrelation is easy for checking up as follows. To an animal the certain quantity or its derivative - dexamethasone is appointed. Dexamethasone, braking on the mechanism of a negative feedback allocation , thereby reduces also activity of a bark of the adrenal glands supervised , that is reduces production . If always to use the same dose of a braking hormone - dexamethasone degree of decrease in production will depend on a sensitivity threshold to dexamethasone action. For example, at two-month rats under the influence of dexamethasone level in blood has decreased on 51 %, and at rats at the age of eight months - only on 11 %.

1 comment:

Infection Yeast Herpes said...

Yeast Infection : At absence of the duly help there comes a stage. Breath becomes frequent superficial arrhythmic but less noisy decreases pliable places of a thorax. The condition of patients progressively worsens. Integuments of is pale-grey color not only a triangle but also a tip of a nose and lips fingers of hands and legs.