Unit 3 chapter 9

Question 1

Function of blood

Answer 1

fluid that circulates through the heart, arteries capillaries, and veins, transporting oxygen, carbon dioxide, and nutrients to the tissues

Question 2

Whole blood

Answer 2

blood drawn directly from the body from which none of the components, such as plasma or platelets, has been removed

Question 3

Formed elements

Answer 3

blood and cells and cellular fragments

Question 4

Plasma

Answer 4

liquid portion of blood that carries formed elements, clotting factors, electrolytes, and proteins

Question 5

Erythrocytes

Answer 5

blood cell thats carries oxygen and carbon dioxide

Question 6

Leukocytes

Answer 6

largest blood cell; protects against pathogens, foreign substances, & cellular debris

Question 7

Platelets

Answer 7

cellular fragments in the blood that stick together, forming a clot

Question 8

blood types

Answer 8

4 different blood types; type A, B, AB, O

Question 9

hemoglobin

Answer 9

protein in red blood cells that binds to oxygen; gives red blood cells the characteristic color

Question 10

hemocrit

Answer 10

the ratio of the volume of red blood cells to the total volume of blood

Question 11

antigen

Answer 11

agent or substance taht provokes an immune response

Question 12

antibody

Answer 12

soldier-like protein that protects the body and inactivates antigens; provides immunity against specific substances and microorganisms

Question 13

blood transfusion

Answer 13

transfer of blood between compatible donor and recipient

Question 14

anemia

Answer 14

condition in which the number of red blood cells, hemoglobin, or packed cell volume us lower than normal

Question 15

iron deficiency anemia

Answer 15

disorder in which hemoglobin is unable to transport oxygen due to the lack of iron

Question 16

vitamin deficiency anemia

Answer 16

a lack of healthy red blood cells caused by lower than usual amounts of vitamin B-12 and folate

Question 17

sickle cell anemia- inherited

Answer 17

disorder caused by a genetic defect resulting in abnormal hemoglobin causing sickle-shaped red blood cells, which have difficulty moving through small capillary vessels

Question 18

blood smear

Answer 18

evaluation of the appearance and number of blood cells and the different types of white blood cells

Question 19

bone marrow aspiration

Answer 19

removal of a small amount of fluid and cells from inside the bone with a needle and syringe

Question 20

phlebotomy

Answer 20

incision into a vein to inject a solution or withdraw blood