Blood Flashcards
what are the formed elements of the blood?
Erythrocytes, leukocytes and blood platelets
what is the most dominant cell type of blood?
erythrocytes
what are the granular leukocytes?
neutrophils, basophils and eosinophils
what are the agranulocytes?
monocytes and lymphocytes
what percentage of WBCs are neutrophils?
~60%
what percentage of WBCs are eosinophils?
~3%
what percentage of WBCs are basophils?
~0.5%
what percentage of WBCs are lymphocytes?
~30%
what would a large number of neutrophils indicate?
infection
what would a large number of eosinophils or basophils indicate?
allergic reaction
are granulocytes motile?
yes
what do neutrophil granules contain?
lysosomal enzymes
what are the first cells to attack invading infections?
neutrophils
can neutrophils replenish their granules?
no
what are the functions of eosinophils?
mediates inflammation, fights parasitic infections
what is the initiator of the inflammatory process?
basophils
what is the largest blood cell?
monocyte
what activates lymphocytes?
antigens
what types of granules do platelets have?
clotting factors, enzymes, mitochondria and glycogen deposits
what do monocytes differentiate into in connective tissue?
macrophage
what are osteoclasts?
formed from macrophage, dissolve bone
what do b lymphocytes differentiate into?
antibody producing plasma cells
do platelets have a nucleus?
no
