Now, another part that I want to highlight on the head of the femur is this depression right here that is used for the attachment of this ligament that is cut right here. This is the head of the femur ligament.
Groupings. The granular leukocytes are the neutrophils, the eosinophils and the basophils. The agranular cells are the monocytes and the lymphocytes. The basis for the division of the white blood cells into these two groups is the presence of granules inside the granular cells.
Some white blood cells have granules. These are appropriately called granulocytes; the name comes from granulo for granule and cyte for cell. Other types of white blood cells don't have granules. These are called agranulocytes, and they're the subject of our lesson.