Blood pressure lab
Hyperpolarization on membrane potentials of nerves and muscles cause
A slow heart rate because it takes longer to reach threshold ( cell is more negative )
What is the parameter for filtration
Blood pressure
What is the role of blood proteins in the movement of fluid between the blood and the interstitial place?
Blood proteins set colloid osmotic pressure
What is the effect of low potassium levels on the membrane potential of nerves and muscles
Causes cell membranes to be hyper polarized > this makes it harder for an action potential
How do low plasma protein levels produce edema
Causes more filtration and less absorption
Low plasma calcium levels
Causes muscle contractions to not be as strong > causing decreased stroke volume
What is the parameter for absorption
Colloid osmotic pressure
Define colloid osmotic pressure
Colloid osmotic pressure is osmotic pressure exerted by plasma proteins. It is responsible for drawing fluid into the blood and preventing excess fluid loss between blood capillaries and the interstitial fluid, thus helping to maintain blood volume and blood pressure.
How does compression of the ankle decrease inflammation
Compression increases the pressure on outside walls of capillaries > decreases the amount of filtration > increasing absorption
low hematocrit
anemia ( low iron )
How does the application of ice to an injury affect blood flow through the capillaries
Ice causes the vasoconstriction of blood vessels which decreases blood flow to the area then this reduces swelling
How does elevation of the damaged ankle decrease inflammation
It uses gravity to it increase venous return > helps excess fluid into the lymph system
How does the removal of ice affect the blood flow through the capillaries and the cytokines.
Removal of ice brings back blood flow which flushes out the cytokines
Define hydrostatic pressure
The pressure exerted by a fluid at equilibrium at a given point within the fluid, due to the force of gravity