Exam 7 ( RENAL ) at University Of North Texas Health Science Center | Flashcards & Summaries

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Loop of henle

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Hairpin-shaped segment that dips down towards the medulla and back up.

  • Divided into a thin descending limb and an ascending limb.
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The distal tubule can be divided into:

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Distal convoluted, connecting tubule, and initial collecting tubule.

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The collecting duct is divided into:

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Cortical collecting duct and the medullary collecting duct.

 

Note: One collecting duct receives the distal tubules of up to 8 nephrons

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Cortical nephron/ superficial nephron

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The cortex contains all bowman's capsule, proximal and distal tubules. ( 80% of nephrons, small size of corpuscle and short loop of Henle)


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Juxtamedullary nephron

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  • The medulla contains loops of henle and collecting ducts. Here, the renal corpuscle is near the medulla but it will always be in the cortex.
  • 20% , larger size of corpuscle and long/deep loop of henle.
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TESTE DEIN WISSEN

High renal blood flow under resting condition will: 

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  • Excrete metabolic products and excess water and substances
  • Maintain body fluid and electrolyte homeostasis and acid-base balance

Note: Accounts for 20-25% cardiac output

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TESTE DEIN WISSEN

Two sets of capillaries in the renal circulation

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Glomerular capillaries and peritubular capillaries

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High glomerular capillary pressure 

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Help glomerular filtration

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Low peritubular capillary pressure helps with?

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Help tubular reabsorption.

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What type of vasculature does one nephron has?

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One nephron has two arterioles and two sets of capillaries that form a portal system



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Glomerular filtration

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  • Occurs in renal corpuscle
  • Water and dissolved solutes ( smaller than plasma proteins) move out of glomerular capillaries into bowman's space
  • Produces protein-free solution (ultrafiltrate) similar to blood plasma

Note: ultrafiltrate and plasma have the same contents but ultrafiltrate does NOT have proteins.

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TESTE DEIN WISSEN

The proximal tubule starts at the glomerulus and can be divided into : 

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TESTE DEIN WISSEN

Proximal convoluted tubule and proximal straight tubule

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Q:

Loop of henle

A:

Hairpin-shaped segment that dips down towards the medulla and back up.

  • Divided into a thin descending limb and an ascending limb.
Q:

The distal tubule can be divided into:

A:

Distal convoluted, connecting tubule, and initial collecting tubule.

Q:

The collecting duct is divided into:

A:

Cortical collecting duct and the medullary collecting duct.

 

Note: One collecting duct receives the distal tubules of up to 8 nephrons

Q:

Cortical nephron/ superficial nephron

A:

The cortex contains all bowman's capsule, proximal and distal tubules. ( 80% of nephrons, small size of corpuscle and short loop of Henle)


Q:

Juxtamedullary nephron

A:
  • The medulla contains loops of henle and collecting ducts. Here, the renal corpuscle is near the medulla but it will always be in the cortex.
  • 20% , larger size of corpuscle and long/deep loop of henle.
Mehr Karteikarten anzeigen
Q:

High renal blood flow under resting condition will: 

A:
  • Excrete metabolic products and excess water and substances
  • Maintain body fluid and electrolyte homeostasis and acid-base balance

Note: Accounts for 20-25% cardiac output

Q:

Two sets of capillaries in the renal circulation

A:

Glomerular capillaries and peritubular capillaries

Q:

High glomerular capillary pressure 

A:

Help glomerular filtration

Q:

Low peritubular capillary pressure helps with?

A:

Help tubular reabsorption.

Q:

What type of vasculature does one nephron has?

A:

One nephron has two arterioles and two sets of capillaries that form a portal system



Q:

Glomerular filtration

A:
  • Occurs in renal corpuscle
  • Water and dissolved solutes ( smaller than plasma proteins) move out of glomerular capillaries into bowman's space
  • Produces protein-free solution (ultrafiltrate) similar to blood plasma

Note: ultrafiltrate and plasma have the same contents but ultrafiltrate does NOT have proteins.

Q:

The proximal tubule starts at the glomerulus and can be divided into : 

A:

Proximal convoluted tubule and proximal straight tubule

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