It seems like you might be asking for a riddle or a line of a poem. The first part mentions blood marrow donation, which is a critical process for helping those with certain blood disorders, such as leukemia. The second part of your question seems to be about the components of the human body.
If I interpret it together, you might be looking for something like this:
- Blood comes from marrow.
- Vessels refer to blood vessels (like arteries and veins).
- Muscles are essential for movement.
- Bones provide structure and support.
If you're looking for a creative or educational response based on your lines, please clarify!