Anatomy and Physiology II Practice Test

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Study for the Anatomy and Physiology II Test. Use flashcards and multiple choice questions, each with hints and explanations. Prepare effectively for your exam!

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An excessive production of erythrocytes is referred to as what?

Hemorrhagic anemia
Polycythemia
Pernicious anemia
Sickle cell anemia

The correct answer is: Polycythemia

The condition characterized by excessive production of erythrocytes, or red blood cells, is known as polycythemia. This can occur due to a variety of reasons, including chronic hypoxia, which stimulates erythropoiesis, or it may be a primary condition such as polycythemia vera, a bone marrow disorder. In polycythemia, the increase in red blood cell mass can lead to increased blood viscosity, which can cause various cardiovascular issues. This condition should be monitored and managed appropriately because it affects the overall oxygen-carrying capacity of the blood and can lead to complications. The other options provided refer to different blood-related conditions: hemorrhagic anemia involves a decrease in red blood cells due to significant blood loss; pernicious anemia is a type of macrocytic anemia due to vitamin B12 deficiency; and sickle cell anemia is a genetic disorder that leads to abnormal hemoglobin, resulting in distorted red blood cells. These conditions involve a reduction or alteration in red blood cells rather than an increase.