Do all bones store fat and produce blood cells? And do all bones contain yellow and red bone marrow? Im talking about the hand bones (phalanges, carpals, metacarpals)Thanks!
http://www.conversantbio.com/blog/red-bone-marrow-vs.-yellow-bone-marrow-what-is-the-difference
https://www.britannica.com/science/bone-marrow
Not all bones store fat and produce blood cells, but all bones contain red and/or yellow bone marrow.
To find the answer to your question, we need to understand bone structure and function. Bones are composed of hard and dense tissue, and they perform various functions in the body, including support, protection of internal organs, movement, and blood cell production.
Regarding fat storage, certain bones have a higher capacity for fat storage than others. Yellow bone marrow, which consists mainly of fat cells, can be found in the central cavities of long bones, such as the femur (thigh bone) and humerus (upper arm bone). So, while not all bones store fat, some bones, particularly long bones, do contain yellow bone marrow where fat is stored.
In terms of blood cell production, this typically occurs in red bone marrow. Red bone marrow is found in the spongy or trabecular bone located in the ends of long bones, including the phalanges (finger bones), carpals (wrist bones), and metacarpals (hand bones). Red bone marrow is responsible for producing red blood cells, white blood cells, and platelets.
Therefore, yes, the hand bones you mentioned - phalanges, carpals, and metacarpals - do contain red bone marrow where blood cells are produced. Yellow bone marrow may or may not be present in these specific bones, as they are primarily involved in blood cell production rather than fat storage.
To verify this information for different bones, you can refer to anatomical resources such as textbooks, online sources, or consult a medical professional.