Question
What type of bone is porous and contains red bone marrow? compact spongy medullary osteon
Answer
4.1
(270 Votes)
Violet
Elite · Tutor for 8 years
Answer
B
Explanation
The question is asking about which type of bone is porous and harbor red bone marrow. Red bone marrow is responsible for the generation of all new blood cells in the body. Given the four options—compact, spongy, medullary, and osteon—it is the spongy bone that meets the description. Compact bone (osteon on the list is essentially the basic unit of compact bone structure) is denser and provides body structure and strength, whereas medullary refers more to the medullary cavity, an area within a long bone that holds yellow marrow, where fat cells are stored. Thus, among those listed, spongy bone is the porous one containing red bone marrow. It's light but strong, and structured in such a way to host the bone marrow in its gaps.