Lecture 1 - General Flashcards
What’s the units for starlings force?
MmHg
Where does starling forces between?
Plasma and Interstitial fluids
What moves during starlings forces?
H20 and ions
What are the 4 major functions in production of the kidney?
Produces renin- Regulates blood pressure via vasoconstriction.
Produced erythropoietin - it acts as a signalling hormone. Causes maturatation of RBC and sends into blood stream.
Produces prostaglandin - Causes vasodilation.
Produces active vit D - Allows the gut to absorb calcium more readily. Sun converts cholesterol to inactive Vit D.
Units for osmotic pressure?
MOsm/kg H20
How many litres of water are in each fluid compartment ?
Intracelluclar fluid- 30L
Interstitial fluid - 12L
Plasma - 3L
How does components in osmotic pressure move?
Via osmosis
What components move in osmotic pressure?
H20, not ions
How does ions move into the intracellular fluids?
Via channel proteins e.g. K NA ATPase
What happens in a hypertonic solution?
The cells shrivels up as H2O diffuses out of cell.
What’s the range osmotic pressure? And units
275-295 mOsm/kg H2O
What’s hypertonic?
High concentration of ions outside the cell, water moves out, cells shrivels and bursts
What happens in hypotonic?
High ion concentration in the cell, water moves in, cell swells and bursts
What’s the volume of water in the body?
40-45L
What are the 4 major functions of the kidney?
Produces renin- Regulates blood pressure via vasoconstriction.
Produced erythropoietin - it acts as a signalling hormone. Causes maturatation of RBC and sends into blood stream.
Produces prostaglandin - Causes vasodilation.
Produces active vit D - Allows the gut to absorb calcium more readily. Sun converts cholesterol to inactive Vit D.
