The salt lickers are called macular denser Beautiful so think dense as density and it's measuring the density or concentration of salt in the distal convoluted These are still part of the juxicle marilla apparatus though, right? Yes. And this is what theySalt lickers are: What are they called? So we've got three ways to release renin drop in blood pressure in the afferent arterial Stimulates juxicles marilla cells to release renn directly We've got sympathetic nervous system Stimulates beta 1 cells on the juxican marilla cells To stimulate renin release directly You've also got a drop in Sodium concentration in the distall convoluted tubule in