Blood, Lymph, And Immune Systems Flashcards Preview

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Flashcards in Blood, Lymph, And Immune Systems Deck (61)
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1

Blood: Structure and Function

Composed of formed elements
-erythrocytes
-leukocytes
-platelets

Formed elements suspended in a liquid called
= plasma

2

Blood: erythrocytes

Transports O2 to cells and remove CO2 from the cells

3

Blood: leukocytes

Provide protection against invasion by pathogens and aid in the healing process
-provide body defense against infection and aid in tissue repair

4

Blood: platelets

Provide a mechanism for blood clotting
- provide a blood clotting mechanism when injuries cause bleeding

5

agglutin/o

Clumping, gluing

6

Thromb/o

Blood clot

7

Ser/o

Serum

8

Kary/o, nucle/o

Nucleus

9

Sider/o

iron

10

Phag/o

Swallowing, eating

11

Stasis

Stays in one spot

12

Lymphatic System

network of vessels that drain excess interstitial fluid from tissue spaces and return it to the blood
-maintains the cells that defend the body against disease-causing agents, such as bacteria, viruses, and cancerous cells
-helps maintain fluid balance and defends the body against microorganisms

13

Lymphatic System: Structure and Function

-Lymph nodes
-lymph vessels and lymph fluid
-tonsils, thymus, and spleen

14

How does the Lymphatic system maintain fluid balances?

drains excess tissue fluid from interstitial spaces and returns it to the blood

15

cervic/o

neck

16

thym/o

thymus

17

tonsil/o

tonsil

18

splen/o

spleen

19

lymphangi/o

lymph vessel

20

inguin/o

groin

21

lymphaden/o

lymph gland (node)

22

aden/o

gland

23

angi/o

vessel (usually blood or lymph)

24

lymph/o

lymph

25

xen/o

foreign, strange

26

Iron Deficiency Anemia

Decreases in red blood cells (RBCs) by insufficient iron in the diet
-large, central paleness (pallor) in RBCs on microscopic examination
-most common anemia in the U.S.
-common in adolescents and premenopausal women during menses

27

Iron Deficiency Anemia: Signs and Symptoms

-extreme fatigue
-cold hands and feet
-headaches

28

Iron Deficiency Anemia: Treatments

-Depends on the severity and cause of the anemia
-oral or parenteral (intramuscular or IV) iron supplements
-dietary modifications, which are commonly sufficient to restore lost iron reserves
-red cell transfusions possibly required in elderly patients

29

Pernicious Anemia

Caused by inadequate levels of vitamin B12
-characteristic formation of large, abnormal red blood cells (RBC's)

30

Pernicious Anemia: Signs and Symptoms

-weakness, nausea, vomiting
-inflammation of nerves (neuritis)
-muscular incoordination
-lightheadedness and impaired memory
-neurological signs and systems progress