Both Astrocytes

send processes to blood vessels, where they induce capillaries to form the tight junctions making up the blood–brain barrier send processes that envelop synapses and the surface of nerve cells.

TLS Online TPP Program

#Id: 5817

#Unit 7. System Physiology – Animal

The zona glomerulosa is controlled via; Renin-angiotensin- aldosterone system

TLS Online TPP Program

#Id: 5818

#Unit 7. System Physiology – Animal

Aldosterone has three actions on the late distal tubule and collecting ducts of the kidney:

TLS Online TPP Program

#Id: 5819

#Unit 7. System Physiology – Animal

The renal epithelial cells express the enzyme 11β-HSD2, which prevent cortisol from activating mineralocorticoid receptors.

TLS Online TPP Program

#Id: 5820

#Unit 7. System Physiology – Animal

Apparent mineralocorticoid excess (AME)

11β-hydroxysteroid dehydrogenase type 2 is inhibited or absent

TLS Online TPP Program

#Id: 5821

#Unit 7. System Physiology – Animal

ACTH stimulates the synthesis and secretion of cortisol by the activation of adenylyl cyclase via Gs.

TLS Online TPP Program

#Id: 5822

#Unit 7. System Physiology – Animal

Angiotensin II stimulates the synthesis and secretion of aldosterone by the activation of phospholipase C via Gq