Bone marrow Bone marrow Bone marrow is a semi-solid tissue which may be found within the spongy or cancellous portions of bones. In birds and mammals, bone marrow is the primary site of new blood cell production or hematopoiesis. It is composed of hematopoietic cells, marrow adipose tissue, and supportive stromal cells. In adult humans, bone marrow is primarily located in the ribs, vertebrae, sternum, and bones of the pelvis. On average, bone marrow constitutes 4% of the total body mass of humans; in an adult having 65 kilograms of mass (143 lb), bone marrow typically accounts for approximately . Human marrow
Down Where the Spirit Meets the Bone 2 Additional Musicians: Down Where the Spirit Meets the Bone Down Where the Spirit Meets the Bone is Lucinda Williams' eleventh studio album. The double album was released on September 30, 2014. It is the first album on Williams' own Highway 20 Records label. The song "Compassion," from which the album title is derived, is based on a poem by her father, Miller Williams. It won the Americana Music Award for Album of the Year. In 2017, the song "When I Look at the World" was covered by Kaitlin Doubleday as her character Jessie Caine on season five of the