Kidneys Flashcards
What hormones are produced in the kidneys?
Erythropoietin (EPO)
Renin-Aldosterone-Angiotensin System
1, 25-dihydroxyvitamin D3
What is the site of synthesis for EPO?
Kidney
Fetus-Liver
What is the function of EPO?
Stimulate development of RBC’s
What controls the secretion of EPO?
Endorphins
Substance P
Oxytocin
Thyroxine
The renin angiotensin aldosterone system regulates?
BP
Fluid Balance
The renin-angiotensin-aldosterone system is activated if there is a loss of?
Blood Volume
BP
What signals the juxtaglomerular cells to release renin?
Macula Densa Cells
Macula densa senses a decrease in blood pressure which causes a decrease in?
Glomerular Filtration Rate (GFR)
What is the function of macula densa cells?
Stimulates renin release in juxtaglomerular cells
Osmolarity of plasma
What cells in the kidney release renin into circulation?
Juxtaglomerular Cells
What causes blood vessels to constrict?
Angiotensin II
Angiotensin II stimulates the release of aldosterone from the?
Adrenal Cortex
Aldosterone increases reabsorption of sodium and water which increases?
BP
Fluid Volume
The renin-angiotensin-aldosterone system stimulates the release of?
Norepinepherine
Renin-angiotensin-aldosterone system increases vasoconstriction of blood vessels which increases BP when the pressure is too?
Low