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

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<TD>'''Answer'''</TD>
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<TD>To which ion is most transport in the proximal tubule linked?</TD>
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<TD>
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<FONT  COLOR="#FFFFFF">
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Sodium</FONT></TD>
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<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Epithelial Transport|Link]]</TD>
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</TR>
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<TR>
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<TD>Which transporter found in the basolateral membrane is essential to maintain low intracellular sodium levels?</TD>
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<TD>
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<FONT  COLOR="#FFFFFF">
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Sodium/potassium ATPase</FONT></TD>
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<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Introduction to Reabsorption|Link]]</TD>
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</TR>
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<TR>
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<TD>Why does the concentration of the tubular fluid remain constant along the tubule despite the reabsorption of ions such as sodium?</TD>
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<TD>
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<FONT  COLOR="#FFFFFF">
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Water passively follows the reabsorbed sodium so the concentration remains fairly similar but the volume is reduced</FONT></TD>
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<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Epithelial Transport|Link]]</TD>
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</TR>
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<TR>
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<TD>When being reabsorbed alone how does sodium enter the epithelial cells?</TD>
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<TD>
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<FONT  COLOR="#FFFFFF">
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Via ion channels</FONT></TD>
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<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Sodium|Link]]</TD>
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</TR>
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<TR>
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<TD>Sodium is able to leave the intersitium and enter the blood because...?</TD>
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<TD>
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<FONT  COLOR="#FFFFFF">
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The blood has a low hydrostatic and high protein osmotic pressure</FONT></TD>
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<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Sodium|Link]]</TD>
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</TR>
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<TR>
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<TD>What is the main route of potassium reabsorption from the proximal tubule?</TD>
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<TD>
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<FONT  COLOR="#FFFFFF">
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paracellular</FONT></TD>
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<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Potassium|Link]]</TD>
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</TR>
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<TR>
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<TD>Potassium is cleared from the cell using a co-transporter with which other ion?</TD>
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<TD>
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<FONT  COLOR="#FFFFFF">
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Chlorine</FONT></TD>
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<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Potassium|Link]]</TD>
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</TR>
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<TR>
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<TD>How is glucose reabsorbed?</TD>
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<TD>
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<FONT  COLOR="#FFFFFF">
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Co-transported with sodium</FONT></TD>
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<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Glucose|Link]]</TD>
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</TR>
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<TR>
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<TD>The plasma concentration at which glucose can first be detected in the urine is called?</TD>
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<TD>
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<FONT  COLOR="#FFFFFF">
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The renal threshold for glucose</FONT></TD>
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<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Glucose|Link]]</TD>
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</TR>
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<TR>
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<TD>Define Splay?</TD>
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<TD>
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<FONT  COLOR="#FFFFFF">
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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>
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<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#T Max and Splay|Link]]</TD>
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</TR>
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<TR>
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<TD>Define T Max?</TD>
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<TD>
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<FONT  COLOR="#FFFFFF">
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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>
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<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#T Max and Splay|Link]]</TD>
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</TR>
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<TR>
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<TD>How is hydrogen excreted?</TD>
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<TD>
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<FONT  COLOR="#FFFFFF">
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Sodium/hydrogen antiporter</FONT></TD>
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<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Secretion of H+|Link]]</TD>
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</TR>
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<TR>
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<TD>Which enzyme is pivotal in the reuptake of bicarbonate?</TD>
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<TD>
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<FONT  COLOR="#FFFFFF">
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Carbonic anhydrase</FONT></TD>
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<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Reabsorption of HCO3-|Link]]</TD>
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</TR>
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<TR>
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<TD>How is protein reabsorbed?</TD>
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<TD>
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<FONT  COLOR="#FFFFFF">
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Endocytosis</FONT></TD>
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<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Protein|Link]]</TD>
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</TR>
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<TR>
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<TD>What is the name of the process by which many drugs are excreted into the proximal tubule?</TD>
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<TD>
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<FONT  COLOR="#FFFFFF">
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Primary Active Secretion</FONT></TD>
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<TD>[[Reabsorption and Secretion Along the Proximal Tubule - Anatomy & Physiology#Primary Active Secretion - Organic Acids and Bases|Link]]</TD>
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</TR>
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</table>
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[[Category:Urine Production]][[Category:Urinary System Anatomy & Physiology Flashcards]]

Latest revision as of 17:21, 21 June 2011

Use the mouse to highlight the answers. They are written in white


Question Answer Link
To which ion is most transport in the proximal tubule linked?

Sodium		 Link
Which transporter found in the basolateral membrane is essential to maintain low intracellular sodium levels?

Sodium/potassium ATPase		 Link
Why does the concentration of the tubular fluid remain constant along the tubule despite the reabsorption of ions such as sodium?

Water passively follows the reabsorbed sodium so the concentration remains fairly similar but the volume is reduced		 Link
When being reabsorbed alone how does sodium enter the epithelial cells?

Via ion channels		 Link
Sodium is able to leave the intersitium and enter the blood because...?

The blood has a low hydrostatic and high protein osmotic pressure		 Link
What is the main route of potassium reabsorption from the proximal tubule?

paracellular		 Link
Potassium is cleared from the cell using a co-transporter with which other ion?

Chlorine		 Link
How is glucose reabsorbed?

Co-transported with sodium		 Link
The plasma concentration at which glucose can first be detected in the urine is called?

The renal threshold for glucose		 Link
Define Splay?

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.		 Link
Define T Max?

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.		 Link
How is hydrogen excreted?

Sodium/hydrogen antiporter		 Link
Which enzyme is pivotal in the reuptake of bicarbonate?

Carbonic anhydrase		 Link
How is protein reabsorbed?

Endocytosis		 Link
What is the name of the process by which many drugs are excreted into the proximal tubule?

Primary Active Secretion		 Link
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