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

Author Question: What mechanism is responsible for the destruction of the majority of normal senescent erythrocytes? ... (Read 113 times)

formula1

  • Hero Member
  • *****
  • Posts: 666
What mechanism is responsible for the destruction of the majority of normal senescent erythrocytes?
 
  a. Intravascular hemolysis
  b. Rupture by complement
  c. Phagocytosis by peripheral neutrophils
  d. Phagocytosis by splenic macrophages

Question 2

Depletion of serum haptoglobin indicates:
 
  a. Decreased erythropoiesis
  b. Extravascular hemolysis
  c. Intravascular hemolysis
  d. Increased phagocytosis of macrophages



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Sassygurl126

  • Sr. Member
  • ****
  • Posts: 320
Answer to Question 1

ANS: D
As red cells become old (senescent), changes occur in the membrane and intracellularly that lead to their phagocytosis by macrophages in the spleen.

Answer to Question 2

ANS: C
Haptoglobin is a plasma protein that binds any free hemoglobin in plasma after red cells lysis in circulation. This helps salvage the iron in the hemoglobin so that it is not lost. When significant intravascular hemolysis (lysis in the blood) exists, haptoglobin is depleted; this can be measured in plasma.




formula1

  • Member
  • Posts: 666
Reply 2 on: Jun 25, 2018
:D TYSM


ktidd

  • Member
  • Posts: 319
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

For a complete list of videos, visit our video library