Blood bone marrow in a process called hematopoiesis, which includes erythropoiesis, the production of red blood cells; and myelopoiesis, the production of white blood cells and platelets. During childhood, almost every human bone produces red blood cells; as adults, red blood cell production is limited to the larger bones: the bodies of the vertebrae, the breastbone (sternum), the ribcage, the pelvic bones, and the bones of the upper arms and legs. In addition, during childhood, the thymus gland, found in the mediastinum, is an important source of T lymphocytes. The proteinaceous component of blood (including clotting proteins) is produced predominantly by
The Bones of What You Believe derives from a lyric in the song "Strong Hand"; according to frontwoman Lauren Mayberry, it refers to the raw "creativity and effort" that served as the figurative and literal skeleton for the album. Musically, "The Bones of What You Believe" is primarily a synth-pop and indie pop album that incorporates "neon-Eighties" influences. "The Bones of What You Believe" received critical acclaim, with many complimenting Mayberry's songwriting and vocal performance, and Iain Cook and Martin Doherty's use of synthesisers and vocal loops. The album debuted at number nine on the UK Albums Chart, selling 12,415 copies in its first week. It