med term module 9

lymphatic system

what are the three main formed elements in blood?

erythrocytes, leukocytes, and platelets or thrombocytes

what are the main functions of leukocytes

provide body defense against infection and aid in tissue repair

what is the main function of platelets (thrombocytes)?

provide a blood clotting mechanism when injuries cause bleeding

hem/o, hemat/o

blood

cyt/o

cell

erythr/o

red

leuk/o

white

thromb/o

blood clot

embol/o

embolus (plug)

agglutin/o

clumping, gluing

myel/o

bone marrow; spinal cord

hem/o/phobia

fear of blood (or bleeding0

erythrocyte

red blood cell

thrombolysis

seperation; destruction; loosening of a blood clot

macrocyte

large blood cell

hematopoiesis or hemopoiesis

formation, prodcution of blood

hemostasis

standing still of blood

leukocytes

cells that are white

hematoma

tumor composed of blood

thromb/oid

resembling a thrombus

phagocyte

cell that swallows or eats (ingests)

thrombosis

abnormal condition of a blood clot

what is the purpose of the lymphatic system?

transports excess fluid from the interstitial spaces in tissues and returns it to the blood and defends the body against foreign invaders and harmful substances

what is the purpose of leukocytes

defend the body against foreign invaders and harmful agents

tonsill/o

tonsil

cervic/o

neck

thym/o

thymus

splen/o

spleen

lymphangi/o

lymph vessel

agglutin/o

clumping, gluing

immun/o

immune; immunity; safe

lymphaden/o

lymph gland (node)

aden/o

gland

lymph/o

lymph

phag/o

swallowing, eating

-oma

tumor

-phylaxis

protection

-poiesis

formation, production

thymoma

tumor of the thymus gland

phagocyte

cell that swallows or eats (ingests)

lymphopoiesis

formation or production of lymph

lymphangioma

tumor of a lymph vessel

agglutination

process of clumping, gluing

immunology

study of immunity

splenomegaly

enlargement of the spleen

lymphoma

tumor (composed of) lymph

lymphadenitis

inflammation of a lymph gland (node)

lymphadenopathy

disease of lymph glands

immunologist

specialist in the study of immunity

thymoma

tumor of the thymus gland

hodgkin disease

malignant disease characterized by painless, progressive enlargement of lymphoid tissue, splenomegaly, and the presence of unique Reed-Sternberg cells in the lymph nodes

lymphadenitits

inflammation and enlargement of the lymph nodes, usually a result of infection

lymphocyte

type of white blood cell (leukocyte) that is responsible for immune responses in dfending the body against disease

mononucleosis

acute infection caused by epstein-barr virus characterized by a sore throat, fever, fatigue, and enlarged lymph nodes

pathogen

any disease-producing microorganism, including virus, bacterium, and fungus

phagocyte

cells that protect the body by ingesting harmful foreign substances

lymphadenopathy

disease of a lymph gland

lymphosarcoma

tumor of lymph that is fleshy (cancerous)

lymphangiography

process of recording lymph vessels

lymphadenography

process of recording lymph glands

splenopexy

surgical fixation of the spleen

immunologist

specialist in study of immunity