Chapter 34 Vocab

Question 1

Absolute Neutrophil Count

Answer 1

A calculation of the number of circulating neutrophils, derived from the total white blood cells (WBCs) and the percentage of neutrophils counted in a microscope’s visual field

Question 2

Angiogenesis

Answer 2

Formation of new blood vessels

Question 3

Apoptosis

Answer 3

Programmed cell death

Question 4

Blast Cell

Answer 4

Primitive leukocyte

Question 5

Clonality (Clone)

Answer 5

Proliferation from same cell of origin so that descendent cells are identical to the cell of origin

Question 6

Cytokines

Answer 6

Proteins produced by leukocytes that are vital to regulation of hematopoiesis, apoptosis, and immune responses

Question 7

Erythrocyte Sedimentation Rate

Answer 7

Laboratory test that measures the rate of settling of red blood cells (RBCs); elevation is indicative of inflammation; also called the sed rate

Question 8

Granulocyte

Answer 8

Granulated WBC (neutrophil, eosinophil, basophil); term sometimes used as synonymous with neutrophil

Question 9

Hematopoiesis

Answer 9

Complex process of the formation and maturation of blood cells

Question 10

Indolent Neoplasm

Answer 10

A slow-growing cancer that often remains localized or causes few symptoms

Question 11

Leukocyte

Answer 11

One of several cellular components of blood involved in defense of the body; subtypes include neutrophils, eosinophils, basophils, monocytes, and lymphocytes (synonym: white blood cell [WBC])

Question 12

Leukemia

Answer 12

Uncontrolled proliferation of WBCs, often immature

Question 13

Leukopenia

Answer 13

Less-than-normal amount of WBCs in circulation

Question 14

Lymphadenopathy

Answer 14

Enlargement of a lymph node or lymph nodes

Question 15

Lymphocyte

Answer 15

Type of WBC involved in immune functions

Question 16

Lymphoid

Answer 16

Pertaining to lymphocytes

Question 17

Lysis

Answer 17

Destruction of cells

Question 18

Monocyte

Answer 18

Large WBC that becomes a macrophage when it leaves the circulation and moves into body tissues

Question 19

Myeloid

Answer 19

Pertaining to nonlymphoid blood cells that differentiate into RBCs, platelets, macrophages, mast cells, and various WBCs

Question 20

Neutropenia

Answer 20

Lower-than-normal number of neutrophils

Question 21

Neutrophil

Answer 21

Fully mature WBC capable of phagocytosis; primary defense against bacterial infection

Question 22

Nucleated Red Blood Cell

Answer 22

Immature form of RBC; portion of nucleus remains within the RBC

Question 23

Pancytopenia

Answer 23

Abnormal decrease in WBCs, RBCs, and platelets

Question 24

Petechiae

Answer 24

Tiny capillary hemorrhages

Question 25

Phagocytosis

Answer 25

Process of cellular ingestion and digestion of foreign bodies

Question 26

Polycythemia

Answer 26

Excess RBCs

Question 27

Splenomegaly

Answer 27

Enlargement of the spleen

Question 28

Stem Cell

Answer 28

Primitive cell, capable of self-replication and differentiation into myeloid or lymphoid stem cell

Question 29

Thrombocytopenia

Answer 29

Lower-than-normal platelet count

Question 30

Thrombocytosis

Answer 30

Higher-than-normal platelet count

Question 31

White Blood Cell

Answer 31

Leukocyte