Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove Ads
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how


BIO202 - Ch 26 - Fluid, Electrolyte, Acid/Base P2- Marieb/Hoehn - RioSalado - AZ

What causes bloating during menstral cycle & edema during pregnancy? Estrogen causing NaCl reabsorption
Progesterone has __ affect & promotes __. diuretic-like - Na+ & water loss.
Glucocorticoids promote __. increased glomerular rate & edema.
K+ excess in ECF decreases membrane __. potential - causes depolarization & reduced excitability.
K+ lack in ECF causes __. membrane hyperpolarization & nonresponsiveness.
Shifts of H+ into & out of cells induce shifts of __ in the opposite direction to maintain cation balance. K+
ECF potassium levels __ with acidosis. rise
ECF potassium levels __ with alkalosis. fall
K+ balance is maintained chiefly by __. renal mechanisms
__ is never secreted into the filtrate. Na+
Na+ is never secreted into __ but K+ is. filtrate
As plasma Na+ levels rise, K+ levels __. fall proportionately
__ cells are directly sensitive to K+ content of ECF bathing them. adrenal cortical cells
Adrenal cortical cells release __ when K+ increases, thereby K+ controls its own concentrations in ECF by regulation of __ release. aldosterone - aldosterone
Lack of ECF potassium causes __. hyperpolarization of neurons & paralysis.
Hypocalcemia causes muscle __. tetany
Hypercalcemia __ muscle cells & causes __. inhibits - cardiac arrhythmias
Bone breaks down into Ca2+ and __. HPO42-
PTH enhances CA2+ absorption by __. intestines, renal tubules
Why are proteins influenced by H+ concentrations? Due to their abundant hydrogen bonds
The lower pH in venous blood is due to? Acidic metabolites & CO2 which combines to form carbonic acid, H2CO3
pH above __ is alkalosis. 7.45
pH below __ is acidosis/acidemia 7.35
Physiological acidosis pH between 7.35 & 7.0
Most H+ originates as __. metabolic by-products or end products.
3 major chemical buffer systems of body are? bicarbonate, phosphate, & protein buffer systems.
Bicarbonate buffer system Carbonic acid (H2CO3) & its salt sodium bicarbonate (NaHCO3).
What is the only important ECF buffer? Bicarbonate buffer system - carbonic - sodium bicarbonate
Alkaline reserve available HCO3- ions
Carbonic acid comes from? The CO2 released during cellular respiration.
Phosphate buffer system NaH2PO4 => Na2HPO4 - one less hydrogen atom
Where is phosphate buffer system most effective? In urine & ICF where phosphate concentrations are usually higher.
Protein buffer system Proteins in plasma & cells - exposed organic acid groups (-COOH) release H+ when pH rises & others bind to the H+ ions.
A single __ molecule can function as an acid or base depending on the pH of environment. protein - amphoteric molecules
Give an example of an amphoteric molecule Hemoglobin - functions as intracellular buffer. Can buffer carbonic acid - amino acid - protein buffer system.
Which fluid contains most magnesium? Intracellular fluid (ICF).
Which fluid contains most calcium? Plasma & then interstitial fluid
Created by: Ladystorm