During Prolonged Endurance Exercise, Why Does the Liver Have Difficulty

question 88

Multiple Choice

During prolonged endurance exercise, why does the liver have difficulty maintaining blood glucose within the normal range?

• A) The blood insulin concentration is depressed.
• B) Conversion of fructose to glucose does not take place.
• C) The central nervous system response is delayed.
• D) The rate of gluconeogenesis is limited.

---

Definitions:

Nuclear Medicine

A branch of medicine that uses radioactive substances in diagnosis and treatment of diseases.

Ionized Radiation

Radiation that carries enough energy to liberate electrons from atoms or molecules, thereby ionizing them.

Nuclides

Distinct kinds of atoms or nuclei characterized by a specific number of protons and neutrons.

Radiopaque Substance

A substance that does not allow X-rays or similar radiation to pass through, appearing white or light on radiographic images, used in contrast-enhanced imaging.