yellow marrow is found mainly in the central skeleton in adults.
yellow marrow is found mainly in the central skeleton in adults.
where do you find yellow marrow in adults?
mainly in the central skeleton
mri is more sensitive and specific for assessing bone composition. mri enables assessment of the average molecular composition of soft tissues, and thus provides information regarding the relative fat content of marrow. in adult humans, "yellow" fatty marrow is the dominant tissue in bones, particularly in the (peripheral) appendicular skeleton. because fat molecules have a high t1-relaxivity, t1-weighted imaging sequences show "yellow" fatty marrow as bright (hyperintense). furthermore, normal fatty marrow loses signal on fat-saturation sequences, in a similar pattern to subcutaneous fat.
bone marrow
located in long bones are two distinctions of bone marrow (yellow and red). the yellow marrow has fatty connective tissue and is found in the marrow cavity. during starvation, the body uses the fat in yellow marrow for energy. the red marrow of some bones is an important site for blood cell production, approximately 2.6 million red blood cells per second in order to replace existing cells that have been destroyed by the liver. here all erythrocytes, platelets, and most leukocytes form in adults. from the red marrow, erythrocytes, platelets, and leukocytes migrate to the blood to do their special tasks.
human musculoskeletal system