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Haematopoiesis, Blood marrow - Coggle Diagram
Haematopoiesis
Foetus
Thymus
Lymph nodes
Spleen
Bone marrow
Liver
Adults
Epiphysis/metaphysis of long bones
EHM- extramedullary haematopoiesis
spleen
liver
Flat bones
Scapula
Ribs
cranial bones
sternum
Neonates
Bone marrow
Lots of red marrow which will regress and become yellow marrow
Growth plate- disappears as animal grows
Embryo
stem cell clusters in yolk sac
Blood marrow
50: 50 ratio in adults
acellular adipose tissue= yellow marrow
cellular haematopoietic tissue = red bone marrow
Changes in bone marrow= cellularity
Red marrow to yellow marrow ratio