Lymphatic System Flashcards
Lymphatic System
Where some interstitial waste and fluid enter (most enters circulatory system, but not all)
Lymph
Fluid that circulates through lymphatic system
Formed when interstitial fluid is collected through lymph capillaries
Lymph then transported through lymph vessels to lymph nodes before emptying into R/L subclavian vein to mix back with blood
How Does Lymph Move
Moves due to skeletal muscle contractions (like veins)
Also has valves to prevent backflow
Lymph Nodes
Acts as a filters and defends against infections
Erthrocytes
RBCs
Transport oxyegn
Catalyze conversion of CO2—> H2O + H2CO3
Mature RBCs do not have a nucleus, allowing for more room for Hb
Leukocytes
WTCs
Disease fighting cells
Fight against infections
Platelets
Fragments of cells involved in blood clotting
Fibrinogen
Main agent in clotting
Normally inactivate
Platelets release factors that activate fibrinogen to fibrin
Fibrin then forms a network thread that stops blood flow
Plasma
Liquid portion of blood
Contains water, proteins, nutrients
55% of blood
Components of Blood
Plasma
Buffy Coat
Hematocrit
Hematocrit
RBC
45% of blood
Buffy coat
WBC, platelets (thrombocyte)…etc
Less than 1% of blood
Granulocytes
Type of WBC
Have granules in their cytoplasm. They include neutrophils, eosinophils, and basophils.
Agranulocytes
Type of WBC
Do not have granules in their cytoplasm. They include monocytes and lymphocytes.
Erythroblastosis Fetalis- Rh Incompatibility
Immune system of pregnant mother attacks RBS of fetus and destroys them (hemolysis)
Rhseus factor- antigen on RBC surface
Dominant autosomal traits
Rh - mother and Rh- baby +, mother’s immune system sees Rh+ as foreign and attacks it
