title: What signals the kidney to release renin?
mesh_terms: D000311:Adrenal Glands / Q000502:physiology; D000804:Angiotensin II / Q000502:physiology; D006801:Humans; D007606:Juxtaglomerular Apparatus / Q000098:blood supply / Q000502:physiology*; D007668:Kidney / Q000294:innervation; D011188:Potassium / Q000502:physiology; D011311:Pressoreceptors / Q000502:physiology; D012083:Renin / Q000378:metabolism*; D012964:Sodium / Q000502:physiology; D013564:Sympathetic Nervous System / Q000502:physiology
chemical_list: D000804:Angiotensin II; D012964:Sodium; D012083:Renin; D011188:Potassium