Erythrocytes Ch 15

Question 1

erythrocyte

Answer 1

a mature red blood cell (oxygen carrying cell)

Question 2

erythr/o (combing form)

Answer 2

red

Question 3

-cyte

Answer 3

cell

Question 4

hemoglobin

Answer 4

the blood protein that transports oxygen

Question 5

heme

Answer 5

the nonprotein, iron containing portion of hemoglobin

Question 6

central pallor

Answer 6

the central pale area of the RBC that represents the thinnest part of the biconcave disc

Question 7

myel/o

Answer 7

bone marrow (and spinal cord)

Question 8

reticulocyte

Answer 8

an immature, non-nucleated erythrocyte characterized by polychromasia (wrights stain) or a meshlike pattern of threads (new methylene blue stain).

Question 9

reticulocytosis

Answer 9

the increase of reticulocytes as the bone marrow responds to blood loss.

Question 10

hematology

Answer 10

the study of blood

Question 11

morphology

Answer 11

the study of form or shape

Question 12

normocytic

Answer 12

normal cell size

Question 13

macrocytic

Answer 13

larger than normal cell size

Question 14

microcytic

Answer 14

smaller than normal size cell

Question 15

poikilocytosis

Answer 15

condition of irregular cell; clinically means varied shapes of erythrocytes

Question 16

poikilo

Answer 16

irregular

Question 17

anisocytosis

Answer 17

condition of unequal cell size

Question 18

normochromic

Answer 18

normal RBC color (has area of central pallor of normal size)

Question 19

hypochromic

Answer 19

more than normal color (has enlarged area of central pallor- decreased hemoglobin concentrations in their cells, pale)

Question 20

hyperchromic

Answer 20

less than normal color (has a decreased area of central pallor- increased hemoglobin concentrations in their cells but this makes the membrane shrink so that the amount of hemoglobin is contained in a smaller space which makes the cells appear darker, bluer, in color)

Question 21

polychromasia

Answer 21

“condition of many colors” that appears all over blue tint of Wright-stained RBCs due to shrinking of the cell membrane; indicates slight immaturity of the erythrocyte

Question 22

Rouleaux (roo-low)

Answer 22

RBCs that are arranged like stacks of coins on the peripheral blood smear; may be artifact or may be normal in species such as dogs or cats

Question 23

Agglutination

Answer 23

Clumping of RBCs due to the presence of an antibody directed against RBC surface antigens that form a latticework that links them together.