Erythrocytes Ch 15 Flashcards Preview

Veterinary Medical Terminology > Erythrocytes Ch 15 > Flashcards

Flashcards in Erythrocytes Ch 15 Deck (23):
1

erythrocyte

a mature red blood cell (oxygen carrying cell)

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erythr/o (combing form)

red

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-cyte

cell

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hemoglobin

the blood protein that transports oxygen

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heme

the nonprotein, iron containing portion of hemoglobin

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central pallor

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

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myel/o

bone marrow (and spinal cord)

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reticulocyte

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

9

reticulocytosis

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

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hematology

the study of blood

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morphology

the study of form or shape

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normocytic

normal cell size

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macrocytic

larger than normal cell size

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microcytic

smaller than normal size cell

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poikilocytosis

condition of irregular cell; clinically means varied shapes of erythrocytes

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poikilo

irregular

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anisocytosis

condition of unequal cell size

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normochromic

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

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hypochromic

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

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hyperchromic

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)

21

polychromasia

"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

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Rouleaux (roo-low)

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

23

Agglutination

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

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