Blood Terms Flashcards
Plasma
Non-living fluid matrix that makes up the blood
Formed Elements
Non-living cells that are suspended from the blood
Erythrocytes
RBC sacs of hemoglobin. Transport of O2 and CO2. anucleated, unable to reproduce, numerous
Leukocytes
WBC, nonspecific defense, immunity, from bone marrow, less than RBC
Diapedesis
The passage of blood. Blood moving in and out of vessels.
Granulocyte
Category of WBC. Contains secretory granules that have protein in them.
Neutrophils
Type of granulocyte. Pink staining, phagocyte, respond quickest to bacteria
Nucleus multi-lobed, red and blue granulates
Eosinophils
Kills parasites, slightly phagocyte, plays roll in allergies & asthma.
Nucleus, bi-lobed, red granulates
Basophil
Releases histamines (defense against inflammation), contain heparin (anticoagulant). appear in many inflammatory reactions like allergies.
Nucleus, large blue granulates.,largest type of granulocyte
Agranulocytes
Category of WBC. one-lobed nucleus. Characterized by the absence of granules in their cytoplasm.
Lymphocytes
Direct cell attack (goes straight to the infection), antibody production
Spherical nucleus, blue cytoplasm
Monocytes
Macrophage (eats big things), fixed or wandering
U-shaped nucleus, gray-blue cytoplasm
Megakaryocytes
Large bone marrow cell; makes platelets
Platelets
- Coagulation
- aka Thrombocytes, seals small tears in blood vessels, necessary in blood clotting
Hematopoiesis
Formation of blood
Erythropoiesis
Formation of RBC
Leukopoiesis
Formation of WBC
Thrombopoiesis
Formation of platelets
Total WBC
Determines the total # of WBC/unit of blood
Total RBC
Determines the total #of RBC per unit of blood
Hematocrit
Volume percentage of RBCs in blood
WBC Differential Count
Determines the percentage of each type of WBC per unit of blood
Anemia
Lack of O2-carrying capacity in/amount of RBC or hemoglobin
Leukopenia
Abnormally low WBC count