How do you give feedback to Dr. Welch at the end of the year (and also get extra credit!)?
SPOT Eval
Extracellular fluid includes ___ and ____
Interstitial Fluid and Plasma
Usually you cannot predict tonicity from osmolarity but what is the exception to this?
Hyposmotic is always hypotonic
Which organ systems have the most control over the entire body?
Nervous and Endocrine
Positive Feedback example (200 for each)
Clot formation, Childbirth
Potassium is most common in which of the following?
Intracellular Fluid, Interstitial Fluid, Plasma
Intracellular fluid
Molarity vs Osmolarity
–Molarity=moles/L
–Osmolarity = number of osmotically active particles/L
Sodium is most common in which two of the following?
Intracellular Fluid, Interstitial Fluid, Plasma
Interstitial Fluid and Plasma
True or False
Homeostasis is keeping the value (i.e. Blood Sugar) at a specific number (80)
False- It is usually a range
Which ion(s) have a higher conc outside the cell (300 points each)?
Sodium and Chloride
How to convert molarity to osmolarity?
Molarity times dissociation factor = osmolarity
That they are non-penetrating
Before the Animal Physiology exam, your heart is pounding and you start to breathe quickly. This is called what?
Feedforward Feedback
Proteins are most common in which two of the following?
Intracellular Fluid, Interstitial Fluid, Plasma
Intracellular Fluid and Plasma
π = g C σ RT
π = Osmotic Pressure
g = number of particles per mole in solution
C= concentration (moles/L)
σ=reflection coefficient
R= Gas constant
T= Absolute temperature
Interstitial vs Intracellular Fluid
Intracellular- In the cell
Interstitial- Along with the plasma, forms the extracellular fluid
True or False- The intracellular and extracellular fluids are in a state of osmotic equilibrium. Keep in mind the differing ions
True- they are in osmotic equilibrium but in chemical and electrical disequilibrium
It will stay in the ECF
When calculating the osmolarity due to adding or removing a solution, what (and where) do you calculate first?
*extra 200- what does this tell you about the other locations?
Osmolarity
Solute
Volume
Osmolarity. Solute. Volume
*alphabetical order!