myeloid stem cells
B lymphocytes are the formed elements most directly responsible for humoral immunity. They produce antibodies that circulate in the bloodstream and bind to antigens, marking them for destruction by other immune cells.
erythrocytes
Formed Elements
Everything except Hydrogen & Helium (and part of the Helium is also formed within stars).
Immature lymphocytes are formed in the bone marrow and then migrate to lymphoid tissues where they mature into T or B cells. In these tissues, they are exposed to antigens and undergo further development to become part of the immune response.
Hematopoietic stem cells produce virtually all formed elements in the blood, including red blood cells, white blood cells, and platelets. These multipotent cells are found in the bone marrow and have the potential to differentiate into various blood cell types.
both are formed in bone marrow but mature in lymph glands.
t cells
Almost all except for inert gases.
Compounds are formed from elements.
Elements are not produced in the Earth's atmosphere because they are formed through nuclear fusion processes in stars or supernovae. The elements found on Earth were created during these events and then dispersed into the universe, eventually coalescing to form celestial bodies like planets.
It is Bone Marrow (long Bone)