Select all that apply: Pernicious anemia is most common in older people. Which choice lists the correct relationships among the factors that cause this disorder? The reduced secretion of intrinsic factor means that vitamin B12 cannot be absorbed, and macrocytes are produced instead of erythrocytes.The reduced synthesis of vitamin B12 results in the production of too many platelets.The reduced secretion of intrinsic factor means that vitamin B12 cannot be absorbed, and too many red blood cells are destroyed.The increased secretion of intrinsic factor results in excess levels of vitamin B12, which causes the synthesis of too many red blood cells for the spleen to break down.

Anemia is a medical condition in which the body is abnormally low in red blood cell count.…

Answered: Select all that apply: Pernicious…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Pernicious anemia is most common in older people. Which choice lists the correct relationships among the factors that cause this disorder?

The reduced secretion of intrinsic factor means that vitamin B₁₂ cannot be absorbed, and macrocytes are produced instead of erythrocytes.

The reduced synthesis of vitamin B₁₂ results in the production of too many platelets.

The reduced secretion of intrinsic factor means that vitamin B₁₂ cannot be absorbed, and too many red blood cells are destroyed.

The increased secretion of intrinsic factor results in excess levels of vitamin B₁₂, which causes the synthesis of too many red blood cells for the spleen to break down.

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