blood and lymphatic system anatomy Flashcards
Function of blood
transports substances throughout body
organs of Blood system
formed elements (such as erythrocytes, platelets, and leukocytes) and plasma
amount of blood average adult has
5 liters
hematopoiesis
process of blood cell production in the red bone marrow
plasma
is about 55% of blood and 90-92% water. the remaining portion is dissolved substances. Contains proteins (albumin, globulin, and fibrinogen) as well as minerals and waste
Albumin
protein in plasma used to transport fatty substances
Globulin
gamma globulins are antibodies
fibrinogen
blood clotting protein in plasma
Erythrocytes
structure is enucleated (no nucleus) and biconcave disk. hemoglobin give them their red color. they are responsible for oxygen transport in the body. has a lifespan of 120 days
leukocytes
provide protection against pathogens. have a spherical shape with large nucleus. (8000 per cubic mm of blood)
granulocytes
leukocytes that have granules in cytoplasm
agranulocytes
leukocytes with no granules in cytoplasm
basophils
granulocyte that releases histamine and heparin to damaged tissues
eosinophils
granulocyte that destroys parasites and increase during allergic reaction
neutrophils
granulocyte that are important for phagocytosis
Monocytes
An agranulocyte important for phagocytosis
Lymphocyte
Agranulocyte that provides protection through immunity
Platelets
Critical in blood clotting (hemostasis). Agglutinate into small clusters one blood vessel is damaged which leads to the formation of thrombin. Thrombin reacts with prothrombin which converts fibrinogen to fibrin and results in the formation of mesh like blood clot
Blood typing
Two possible rbc markers:
A type: anti-b antibodies
B type: anti-a antibodies
AB blood has no antibodies and o blood has both antibodies
Universal donor
O blood
Universal recipient
AB
Rh+
Does not make anti rh antibodies
Rh-
Produces anti-Rh antibodies
Can only receive Rh-
Basophilic
Wbc that attracts a basic pH stain