Erythropoiesis requires stimulation from the hormone:


a. thrombin.
b. thrombopoietin.
c. thymosin.
d. erythropoietin.

Verified step by step guidance

1. Understand the process of erythropoiesis, which is the production of red blood cells (erythrocytes) in the bone marrow.
2. Identify the role of hormones in stimulating erythropoiesis. Hormones are chemical messengers that regulate various physiological processes.
3. Recall that erythropoietin is a hormone specifically involved in the regulation of red blood cell production.
4. Differentiate between the options provided: thrombin is involved in blood clotting, thrombopoietin stimulates platelet production, and thymosin is associated with the immune system.
5. Conclude that erythropoietin is the hormone that stimulates erythropoiesis.

Key Concepts

Erythropoiesis

Erythropoiesis is the process of producing red blood cells (erythrocytes) from precursor cells in the bone marrow. This process is crucial for maintaining adequate oxygen transport in the body. It is regulated by various factors, including hormones, oxygen levels, and nutritional status.

Erythropoietin

Erythropoietin (EPO) is a hormone primarily produced by the kidneys in response to low oxygen levels in the blood. It stimulates the bone marrow to increase the production of red blood cells, thereby enhancing the oxygen-carrying capacity of the blood. EPO is essential for regulating erythropoiesis.

Hormonal Regulation

Hormonal regulation refers to the control of physiological processes through hormones, which are chemical messengers released into the bloodstream. In the context of erythropoiesis, hormones like erythropoietin play a vital role in signaling the body to produce more red blood cells when needed, ensuring homeostasis.