Med Term Ch 8

The Blood and Lymphatic Systems - Hematology and Immunology

Hemat/o or Hem/o

blood

-poiesis

formation

hematopoiesis

formation of blood

-rrhage

bursting forth

hemorrhage

bursting forth of blood

hematoma

tumor of blood

-stasis

stop or control

hemostasis

stopping of blood

hemostat

the instrument used to stop or control bleeding

Hemostatic Agent

pertaining to stopping or controlling bleeding

Hemolysis

the breakdown of blood

hematology

the study of blood

oncology

study of cancer

hem

abreviation for hematology

onc

abreviation for oncology

coagul/o

clotting

coagulation

a condition of clotting

erythrocyte

red blood cell (RBC)

Erythro

red

cyte

cell

Leukocyte

white blood cell (WBC)

leuko

white

Thrombocyte

platelet

Thromb/o

clot, lump, or thick drop

Plasma

clear, straw colored liquid containing cells (unclotted)

Serum

sticky yellow fluid (clotted)

ser/o

serum

Erythropoiesis

formation of red blood cells

Leukopoiesis

formation of white blood cells

Thrombopoiesis

formation of platelets

hemoglobin

main component of RBC

Hgb

Abrieviation for hemoglobin

Heme

iron

globin

protein

Hematocrit

% of RBCs compared to total volume of blood

HCT

abreviation for hematocrit

H&H

Hgb & HCT

erythropenia

deficiency of RBC

-penia

deficiency

polycythemia vera

condition of many blood cells

-ia

condition, state, or thing

Anemia

Deficiency in Hgb or RBCs

Hemolytic anemia

number of RBCs is decreased due to hemolysis

Aplastic anemia

decreased RBC production due to no development of bone marrow cells

-plasia

development or formation

a-

lack of

Iron deficiency

increased blood loss or lack of iron in diet

Sickle cell

RBC assumes “sickle” shape when exposed to decreased O2; Abnormal Hgb carries decreased O2

leukopenia

a deficiencey in the number of WBCs

Leukocytosis

a condition of WBCs

CBC

Complete blood count

DIFF

Differential blood count

Differential blood count

type of blood count that seperates the WBCs into granular (Neutrophil, Basophil, Eosinophil), and agrangular (Lymphocyte and Monocyte)

neutr/o

neutrophils

-phil

attraction

neutro

neutral

baso

basic

eosino

red/rosey

neutrophils

granulocytes thats primary role is defense

eosinophils

granulocytes that increase in allergic reactions

basophils

granulocytes that bring histamine and heparin to inflamed and injured tissues

monocytes

a type of white blood cell that is made in the bone marrow and travels through the blood to tissues in the body where it then becomes a macrophage

macrophage

large eaters; surround and killer microorganisms, ingest foriegn materials, remove dead cells, and increase immune response

Lymphocytes

T cells: NK or natural killer cells; cancer surveillance; Helper T assists T-cells to recognize “self” from “non-self” cells; Suppressor T cells suppress antibody production by other lymphoid cells

B cells: humoral immunity (antibody mediated immunity); antigen/antibody response; antibody production through immunization

immune system

keeps person safe from disease

immun/o

immune system

AIDS

Acquired immunodeficiency syndrome

AIDS etiology

Human immunodeficiency virus (HIV); Kaposi’s sarcoma; opportunistic infections

splen/o

spleen

spleen

destroys old RBCs, filters blood, activates B lyphocytes

Allergy

hypersensitivity reaction caused by an antigen

Anaphylaxis

severe allergic reaction causing respiratory distress

ALL

acute lymphocytic leukemia

AML

acute myelocytic leukemia

EBV

ebstein-barr virus

mononucleosis

AKA mono; “Kissing” disease

hemophilia

attraction for blood; blood does not clot normally; risk for internal bleeding

Purpura

hemorrhage into the tissues, beneath the skin or mucous membranes

pancytopenia

deficiency in all cells

lymph/o

lymphatic system

lymph

clear, watery fluid that surrounds cells; originates from blood; flows in lymph capillaries, vessels, nodes, and organs