Part 1: Pathology (Immunity, Blood, Genetics, Bone & Joints) Flashcards
Bradykinin/Histamine is responsible for what during the inflammation process?
Vasodilation (increase inflammation)
Leukotrienes is responsible for what during the inflammation process?
increased inflammation
Prostaglandins is responsible for what during the inflammation process?
increased inflammation
Substance P is responsible for what during the inflammation process?
Increased inflammation
Enkephalins/Endorphins is responsible for what during the inflammation process?
Pain control (Decreases inflammatino)
NSAIDs is responsible for what during the inflammation process?
decrease inflammation
NSAIDs inhibit…
Cycloxygenase (COX)
Steroids is responsible for what during the inflammation process?
decrease inflammation
Steroids inhibit…
Phospholipase A2
B-lymphocytes are responsible for what role in the immune system?
transform into plasma cells to make antibodies
Granulocytes consist of what types of cells?
Basophils
Eosinophils
Neutrophils
Agranulocytes consist of what types of cells?
Lymphocytes & Monocytes
Macrophages are widely distributed. what are the called in each of the following areas of the body? Tissue, Liver, Lung, CNS, PNS, Skin
Tissue Level: Monocytes
Liver: Kupffer
Lung: Dust
CNS: Microglia
PNS: Dendritic
Skin: Langerhan
Natural Killer Cells consist of what types of cells?
Monocytes
Eosinophils
Neutrophils
T-Helper cells are responsible for what role in the immune system?
CD4 cells; activate B cells
T-Killer cells are responsible for what role in the immune system?
CD8 cells; Destroy cancer & foreign agents
T-Suppressor cells are responsible for what role in the immune system?
T-regulatory cells; decrease immune system slowing antibody production
WBCs and their percentages in the blood:
60% Neutrophils
30% Lymphocytes
5-8% Monocytes
2-4% Eosinophils
0-.5% Basophils
What do Neutrophils do?
increase in acute bacterial infections and acute inflammation
What do lymphocytes do?
Increase in viral conditions and chronic inflammation
What do Monocytes do?
change into phagocytes in chronic conditions
What do Eosinophils do?
increase in parasites and allergies
What do Basophiles do?
Produce heparin & histamine increasing conditions that cause histamine release
Steps of the Immune complex from Antigen -> Antibody (7)
Antigen -> Macrophage -> CD4 cells -> produces lymphokines -> stimulates B lymphocytes -> converts to plasma cells -> produce antibodies
Natural immunity involves what 4 cells?
1) Natural killer cells
2) Mast cells
3) Basophils
4) Macrophage
What is the MC primary immunodeficiency at birth?
Bruton’s Agammaglobulinnemia
What effect does Bruton’s Agammaglobulinnemia have?
decreases B cells & IgG
What isDiGeorge disorder?
hypoplasia of thymus
What causes DiGeorge disorder?
T cell deficiency at birth affecting bone marrow
What causes severe combined immune deficiency?
newborn without proper B or T cells
adult with aplastic anemia OR benzene poisoning
Prothrombin converts to thrombin by using what?
Vit K & Calcium
What substance breaks down clots?
fibrolysin & plasmin
What starts coagulation?
Hageman factor 12
Hemophilia A:
1) Factor deficiency
2) Factor name
1) 8
2) Von willibrand
Hemophilia B:
1) Factor deficiency
2) Factor name
1) 9 / 10
2) Christmas factor disease / Stuart factor
Hemophilia C:
1) Factor deficiency
2) Factor name
1) 11 / 12
2) NONE / Hageman Factor
Hemophilia C is considerd
mild
Hemophilia B: ________ are carriers and _______ have the disease
(X-linked) Females; Males
What type of Hemophilia results in decreased platelet adhesion
Hemophilia A
what ype of anemia is caused by benzate poisoning?
aplastic anemia
Aplastic anemia shows decreased…
RBCs, WBCs & platelets, bone marrow degeneration
Decreased RBC, WBC and platelets is known as ____________.
pancytopenia
MC cause of decreased RBC production
iron deficiency
MC cause of iron deficiency
chronic blood loss (menses)
Reasons for decreased production of RBCs
1) Iron def.
2) pernicious anemia from gastritis
3) folic acid def
4) B12 def
B12 deficiency is commonly seen in
vegetarians
Iron deficiency anemia is considered (2)
Microcytic, hypochromic
pernicious anemia has a lack of _____________ and can be caused by ____________.
Intrinsic factor; Gastritis
Folic acid deficiency is known as what type of anemia?
megaloblastic
chronic blood loss leads to…
iron deficiency anemia (microcytic, hypochromic)
Hemorrhage leads to…
normochromic/normocytic anemia
3 diseases that can cause blood loss:
1) Sickle cell anemia
2) Thalassemia Major
3) Erythroblastosis fetalis
How does sickle cell anemia cause blood loss?
hemolytic breakdown
AKAs for Thalassemia Major
1) Cooley’s anemia
2) Homozygous Beta Thalassemia
3) Mediterranean anemia
What sign on x ray indicates thallesimia maor?
“hair on end” of the skull
What Rh factors do parent and baby have in erythroblastosis fetalis?
Mom Rh-
Dad Rh+
Baby Rh+
What is Polycythemia?
Increased RBCs
What is 1st degree polycythemia?
Polycythemia Rubra Vera
(Pathological)
What is 2nd degree polycythemia?
relative polycythemia
(normal response to high altitudes)
Definition of Thrombocytopenia
decreased platelets in the blood
An aneurysm of the Berry in Circle of Willis is a
subarachnoid hemmorhage
What is a dissecting aneurysm?
Longitudinal tearing of aorta
Signs of an AAA
- sudden LBP
- hypovolemic shock
- thready pulse
what shape and what type of calcification is seen in an AAA?
fusiform shape & curvilinear calcification
What is Atherosclerosis?
deposition of fatty plaque in intima of large & medium sized arteries causing narrowing
AKA for Buerger’s disease
Thromboangitis Obliterans
What type of patient sget Buerger’s disease?
younger males (20-40 y.o.) with history of smoking
What is Buerger’s disease?
intermittent claudication of lower extermity with exertion (cramping)
What is a cardiac tamponade?
fluid in pericardial space preventing proper ventricular filling
What refferal should a cardiac tamponade have?
ER
What is Aortic Coarctation?
congenital narrowing of aorta distal to the left subclavian
Coarctation of the aorta causes…
Hypertension in upper extremities and hypotension in lower extremities
Who typically gets Monkeberg’s sclerosis?
smokers & diabetics
What is Monkeberg’s sclerosis?
Calcified tunica media of medium sized arteries