The blood carries various substances that must be transported from one part of the body to another. Red blood cells are an important component of the blood because their function is to carry oxygen to the body tissues and exchange it for carbon dioxide, which is carried and removed by the lungs.

Erythropoiesis is the process of red blood cell (erythrocyte) production. It is stimulated by a decrease in O2 in the circulation, detected by the kidneys, which then secretes the hormone erythropoietin. This hormone stimulates the proliferation and differentiation of red blood cell precursors, which triggers an increase in erythropoiesis in hematopoietic tissues and ultimately in the production of red blood cells. <u>In adults, red blood cells are formed in the red bone marrow.</u>

In early developing fetuses, erythropoiesis occurs in the mesodermal cells of the yolk sac. In the third or fourth month, erythropoiesis moves to the liver. After seven months, erythropoiesis occurs in the bone marrow.

6 0

3 years ago

True or False. When paired with an immunosuppressant drug, saccharine (sugar) did not have immunosuppressant effects on rats.

Anastaziya [24]

The statement 'when paired with an immunosuppressant drug, saccharine (sugar) did not have immunosuppressant effects on rats' is FALSE. Saccharine is an artificial sweetener.

<h3>Immunosuppressant drugs and saccharine</h3>

Immunosuppressant drugs are a type of drug that exhibits a depressive effect o the immune system of the individual.

Immunosuppressant drugs include, for example, adalimumab, infliximab, calcineurin inhibitors, cyclosporine, etc.

Moreover, saccharin is an artificial sweetener that is 400 times as sweet as sucrose (sugar).

Learn more about immunosuppressant drugs here:

brainly.com/question/830058

4 0

2 years ago