Hormonal Control Of Blood Pressurd Flashcards
Why are older people at higher risk of fluid related problems?
Lower fluid reserves or impaired organ function
The 2 types of body fluids are?
1) extracellular fluid (ECF)
2) intracellular fluid (ICF)
Where is intracellular fluids (ICF) found?
Inside the cells
Where are extracellular fluids (ECF) found?
Outside the cells and in blood plasma
What does insensible loss of water mean?
water loss due to water that passes through the skin and is lost by evaporation of the lungs
What is overhydration?
Too much water in body
ADH is secreted by?
Hypothalamus
What is renin angiotensin aldosterone system (RAAS)?
Hormonal system that contributes to the regulation of BP and fluid balance
When blood volume is low, specialised cells (juxtaglomerular cells) in the kidneys secrete?
Renin
Renin causes angiotensinogen to be converted to?
Angiotensin 1
How is angiotensin 1 converted into angiotensin 11?
By an enzyme called angiotensin converting enzyme (ACE)
What is a common problem associated with blood pressure management?
Hypertension
What do diuretics do?
Causes excess water to be excreted by the kidneys
Name an example of a diuretic drug?
ACE inhibitors - decreases blood pressure
The hormone ADH, is stored in the?
Posterior pituitary
