In the Adult, Red Blood Cells are Produced in Areas

Question

In the adult, red blood cells are produced in areas of the ________.
A) liver
B) red bone marrow
C) spleen
D) pancreas
E) brainstem

Accepted Answer

Red blood cells, also known as erythrocytes, are produced in the red bone marrow in the adult human body. The red bone marrow is found in the spongy bone tissue in the sternum, ribs, pelvis, and ends of long bones. The liver, spleen, pancreas, and brainstem have other important functions but are not involved in the production of red blood cells in adults.