B vitamins are water-soluble, meaning you can't store them away in your fat cells to use later; they need to be a regular part of your diet. Essential B vitamins for the digestive system include: 1  B1. 2  Also known as thiamine, B1 helps your body change the carbohydrates in your diet into energy for your cells and regulate appetite. 3  B3.
In adults: Red marrow is found mainly in the flat bones hip bone, breast bone, skull, ribs, vertebrae and shoulder blades In the cancellous (spongy) material at the proximal ends of the long bones femur and humerus. Yellow marrow is found in the medullary cavity the hollow interior of the middle portion of long bones.In a child, all bone marrow is red bone marrow and can be found in nearly all flat and long bones, including the epiphysis and diaphysis.As the child ages the red bone marrow in the diaphysis of the long bones will be replaced with yellow bone marrow.ellow marrow is found in the medullary cavity the hollow interior of the middle portion of long bones. In a child, all bone marrow is red bone marrow and can be found in nearly all flat and long bones, including the epiphysis and diaphysis.
Red bone marrow is found in all flat bones, epiphyses, and medullary cavities of infants, but in adults, distribution is restricted to flat bones and the proximal epiphyses of the humerus and femur. All bone has a dense outer layer consisting of compact bone that appears smooth and solid.tructure of a Typical Long Bone Long bones have a tubular bone shaft, consisting of a bone collar surrounding a hollow medullary cavity, which is filled with yellow bone marrow in adults. Epiphyses are at the ends of the bone, and consist of internal spongy bone covered by an outer layer of compact bone.