Question

Sites of hematopoiesis include all but

a)red marrow cavities of spongy bone
b) diploe of flat bones,
c) medullary cavities in bones of infants
d) medullary cavities in bones of a healthy adult

Answer 1

Hematopoiesis occurs in red marrow cavities of spongy bone, diploë of flat bones, and medullary cavities in bones of infants, but not in the medullary cavities of a healthy adult's long bones.

Step-by-step explanation:

Sites of hematopoiesis include all but the medullary cavities in bones of a healthy adult. This process involves the production of blood cells and occurs in various sites such as the red marrow cavities of spongy bone, the diploe of flat bones, and the medullary cavities in bones of infants. In adults, red marrow is mainly found in the femur, ribs, vertebrae, and pelvic bones, while the medullary cavities in the long bones of adults contain primarily yellow bone marrow, which is used for energy storage and consists mostly of fat cells.