FMA definition : subdivision of back each instance of which has as its constitutional part some complete
set of vertebral arches (L1-L5) and anatomical entities located posterior to them;
together with back of thorax and back of pelvis constitutes the back. Examples: There
is only one back of abdomen.;
Synonyme FMA : Lumbar part of back; Dorsum of abdomen; Lumbar region; Posterior part of abdomen; Abdominal back;
subdivision of back each instance of which has as its constitutional part some complete
set of vertebral arches (L1-L5) and anatomical entities located posterior to them;
together with back of thorax and back of pelvis constitutes the back. Examples: There
is only one back of abdomen.