Anatomy & Physiology Immune #16

Question

Which organ is primarily impacted by prions?

Answers

  1. Brain
    • Rationale:

      The brain, along with neural tissue, is the organ system that is primarily impacted by prion diseases.

  2. Heart
    • Rationale:

      The heart is not primarily impacted by prion diseases. Other pathogens, however, can impact the cardiovascular system.

  3. Lungs
    • Rationale:

      The lungs are not primarily impacted by prion diseases. Other pathogens, however, can impact the respiratory system.

  4. Kidneys
    • Rationale:

      The kidneys are not primarily impacted by prion diseases. Other pathogens, however, can impact the renal system.

Overview

A prion is not a living organism. It is defined as an abnormal folding of normal cellular proteins (i.e., prions).

Explanation

Learning Outcomes

Prions, in addition to prion diseases, predominantly impact the brain and neural tissue (e.g., encephalopathy). These infections are often associated with high morbidity and mortality rates. Prions can only be destroyed with sterilization.

Test Taking Tip

Consider what a prion is, and what is impacts in the human body, to answer this question correctly.

Video Rationale