Khan Academy Static

The human body enjoys stability. For example, if your blood pressure changes, the body puts a couple of brilliant systems into motion in order to respond and bring your blood pressure back to normal. There are some quick responses using nerves and some slower responses using hormones. The system using hormones is sometimes called the renin-angiotensin-aldosterone-system (RAAS), which is the main system in the body for controlling blood pressure. When your blood pressure drops too low or gets too high, your kidneys, liver, and pituitary gland (part of your brain) talk to each other to solve the problem. They do this without you even noticing! Learn how the body knows when the blood pressure has changed, and how hormones like angiotensin 2, aldosterone, and ADH help return blood pressure to back to normal.

15897_Aldosterone_and_ADH.html

15889_General_overview_of_the_RAAS_system_Cells_and_hormones.html

15891_Activating_angiotensin_2.html

15887_Regulation_of_blood_pressure_with_baroreceptors.html

15896_ADH_effects_on_blood_pressure.html

15890_Renin_production_in_the_kidneys.html

15888_Parts_of_a_nephron.html

15895_ADH_secretion.html

15893_Aldosterone_raises_blood_pressure_and_lowers_potassium.html

15892_Angiotensin_2_raises_blood_pressure.html

15894_Aldosterone_removes_acid_from_the_blood.html