Bone Marrow

Hematopoiesis

graph LR
    X[Hematopoiteic Stem cell]; ==>|cell division| Y[2 Daughter cell]
    Y ==>|1 daughter cells| 1[Common Lymphoid-Progenitor Cell];
    1 ==>|IL-7| 1a[Lymphoblast];
    1a ==> 1b[Nk cells ];
    1b ==> 1c[ Pre-B cells];
    1b ==> 1d[Pre-T cells]; 
    Y ==>|1 daughter cells| 2[Common Myeloid-Prfogenitor cell];
    2 ==>|erythropoieten| 2b[Erythroblast];
    2 ==> 2c[Megakaryocyte];
    2 ==> 2a[Granulocyte/monocyte Progenitor];
    2a ==> 2a1[Basophil];
    2a ==> 2a2[Eosnophil];
    2a ==> 2a3[Neutrophil];
    2a ==> 2a4[monocytes];
    2a4 ==> 2a4a[macrophage];
    2a4 ==> 2a4b[dendrtic cell];
    2c ==>|segments of Megakaryoyte| 2c1[Platelets];
    2b ==> 2b1[Rbc];

Types of Bone Marrow

graph TD
    X{Bone Marrow} ==>|Mostly Adipose tissue,<mark> inactive hematopoietic cells</mark>| A[Yel:octicons-arrow-down-24: marrow ];
    A ==>|adults| A1[Tibia,Femur];
    X ==>|50% adipose,50% Active Hematopoitic Stem cells| B[red marrow];
    B ==>|adults| B1[Sternum,vertebra,ribs];