Erythropoiesis = formation of erythrocytes. 1  the body must produce about 2.5 million new RBCs every second. 2  in adults, erythropoiesis occurs mainly in the marrow of the sternum, ribs, vertebral processes, and skull bones. 3  begins with a cell called a hemocytoblast or stem cell (below)  rate is regulated by oxygen levels:
1 Second Intention Healing â A wound that is extensive and involves considerable tissue loss, and in which the edges cannot be brought together heals in this manner. 2  This is how pressure ulcers heal. 3  Secondary intention healing differs from primary intention healing in three ways:
Intention, intent, purpose all refer to a wish that one means to carry out. Intention is the general word: His intention is good. Intent is chiefly legal or literary: attack with intent to kill. Purpose implies having a goal or determination to achieve something: Her strong sense of purpose is reflected in her studies.