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 106 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?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

The human body produces and destroys 15 million blood cells every second.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

For a complete list of videos, visit our video library