Difference between revisions of "Reabsorption and Secretion Along the Proximal Tubule - Renal Flash Cards - Anatomy & Physiology"

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|linkpage =The Nephron - Renal Flash Cards - Anatomy & Physiology
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|linktext =THE NEPHRON - RENAL FLASH CARDS
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|maplink = Urinary System (Content Map) - Anatomy & Physiology
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|pagetype =Anatomy
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'''Use the mouse to highlight the answers.  They are written in white'''
 
'''Use the mouse to highlight the answers.  They are written in white'''
 
 
<TABLE BORDER="2" BORDERCOLOR="#6600FF" CELLPADDING="2" CELLSPACING="2" WIDTH="80%">
 
<TR>
 
<TD>'''Question'''</TD>
 
<TD>'''Answer'''</TD>
 
<TD>'''Link'''</TD>
 
</TR>
 
<TR>
 
<TD>To which ion is most transport in the proximal tubule linked?</TD>
 
<TD>
 
<FONT  COLOR="#FFFFFF">
 
Sodium</FONT></TD>
 
<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Epithelial Transport|Link]]</TD>
 
</TR>
 
<TR>
 
<TD>Which transporter found in the basolateral membrane is essential to maintain low intracellular sodium levels?</TD>
 
<TD>
 
<FONT  COLOR="#FFFFFF">
 
Sodium/potassium ATPase</FONT></TD>
 
<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Introduction to Reabsorption|Link]]</TD>
 
</TR>
 
<TR>
 
<TD>Why does the concentration of the tubular fluid remain constant along the tubule despite the reabsorption of ions such as sodium?</TD>
 
<TD>
 
<FONT  COLOR="#FFFFFF">
 
Water passively follows the reabsorbed sodium so the concentration remains fairly similar but the volume is reduced</FONT></TD>
 
<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Epithelial Transport|Link]]</TD>
 
</TR>
 
<TR>
 
<TD>When being reabsorbed alone how does sodium enter the epithelial cells?</TD>
 
<TD>
 
<FONT  COLOR="#FFFFFF">
 
Via ion channels</FONT></TD>
 
<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Sodium|Link]]</TD>
 
</TR>
 
<TR>
 
<TD>Sodium is able to leave the intersitium and enter the blood because...?</TD>
 
<TD>
 
<FONT  COLOR="#FFFFFF">
 
The blood has a low hydrostatic and high protein osmotic pressure</FONT></TD>
 
<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Sodium|Link]]</TD>
 
</TR>
 
<TR>
 
<TD>What is the main route of potassium reabsorption from the proximal tubule?</TD>
 
<TD>
 
<FONT  COLOR="#FFFFFF">
 
paracellular</FONT></TD>
 
<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Potassium|Link]]</TD>
 
</TR>
 
<TR>
 
<TD>Potassium is cleared from the cell using a co-transporter with which other ion?</TD>
 
<TD>
 
<FONT  COLOR="#FFFFFF">
 
Chlorine</FONT></TD>
 
<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Potassium|Link]]</TD>
 
</TR>
 
<TR>
 
<TD>How is glucose reabsorbed?</TD>
 
<TD>
 
<FONT  COLOR="#FFFFFF">
 
Co-transported with sodium</FONT></TD>
 
<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Glucose|Link]]</TD>
 
</TR>
 
<TR>
 
<TD>The plasma concentration at which glucose can first be detected in the urine is called?</TD>
 
<TD>
 
<FONT  COLOR="#FFFFFF">
 
The renal threshold for glucose</FONT></TD>
 
<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Glucose|Link]]</TD>
 
</TR>
 
<TR>
 
<TD>Define Splay?</TD>
 
<TD>
 
<FONT  COLOR="#FFFFFF">
 
Between the renal threshold and T-Max the amount of glucose filtered and the amount of glucose in the urine is not linearly related. This is becuase some nephrons have a greater capacity for reabsorbtion than others and are not overcome as easily.</FONT></TD>
 
<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#T Max and Splay|Link]]</TD>
 
</TR>
 
<TR>
 
<TD>Define T Max?</TD>
 
<TD>
 
<FONT  COLOR="#FFFFFF">
 
Is the point at which every nephron is running at full capacity of reabsorping glucose. After this point the glucose cocentration filtered and excreted increase linearly.</FONT></TD>
 
<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#T Max and Splay|Link]]</TD>
 
</TR>
 
<TR>
 
<TD>How is hydrogen excreted?</TD>
 
<TD>
 
<FONT  COLOR="#FFFFFF">
 
Sodium/hydrogen antiporter</FONT></TD>
 
<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Secretion of H+|Link]]</TD>
 
</TR>
 
<TR>
 
<TD>Which enzyme is pivotal in the reuptake of bicarbonate?</TD>
 
<TD>
 
<FONT  COLOR="#FFFFFF">
 
Carbonic anhydrase</FONT></TD>
 
<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Reabsorption of HCO3-|Link]]</TD>
 
</TR>
 
<TR>
 
<TD>How is protein reabsorbed?</TD>
 
<TD>
 
<FONT  COLOR="#FFFFFF">
 
Endocytosis</FONT></TD>
 
<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Protein|Link]]</TD>
 
</TR>
 
<TR>
 
<TD>What is the name of the process by which many drugs are excreted into the proximal tubule?</TD>
 
<TD>
 
<FONT  COLOR="#FFFFFF">
 
Primary Active Secretion</FONT></TD>
 
<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Primary Active Secretion - Organic Acids and Bases|Link]]</TD>
 
</TR>
 
</table>
 
 
[[Category:Urine Production]][[Category:Urinary System Anatomy & Physiology Flashcards]]
 

Revision as of 09:40, 1 September 2008

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