This topic contains a solution. Click here to go to the answer

Author Question: Which type of nephron determines the concentration of the urine? a. Juxtamedullary b. ... (Read 63 times)

audragclark

  • Hero Member
  • *****
  • Posts: 579
Which type of nephron determines the concentration of the urine?
 
  a. Juxtamedullary
  b. Midcortical
  c. Cortical
  d. Medullary

Question 2

What type of phagocytic cell lies between the layers of the renal capillaries?
 
  a. Podocytes
  b. Macula densa cells
  c. Mesangial cells
  d. Filtration slits



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

vickyvicksss

  • Sr. Member
  • ****
  • Posts: 351
Answer to Question 1

ANS: A
The juxtamedullary nephrons lie close to and extend deep into the medulla and are important for the concentration of urine. Concentration of urine is not associated with midcortical, cortical, or medullary nephrons.

Answer to Question 2

ANS: C
Mesangial cells lie between and support the capillaries. Mesangial cells have phagocytic ability similar to monocytes, release inflammatory cytokines, and can contract to regulate glomerular ca-pillary blood flow. The epithelium has specialized cells called podocytes from which pedicles (foot projections) radiate and adhere to the basement membrane. The macula densa are sodi-um-sensing cells. The pedicles interlock with the pedicles of adjacent podocytes, forming an elaborate network of intercellular clefts called filtration slits, or slit membranes.





 

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Did you know?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

For a complete list of videos, visit our video library