Eosinophils (a) have a gray-blue cytoplasm, (b) have a spherical nucleus, (c) contain red cytoplasmic granules, (d) are anucleate.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
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Chapter1: The Human Body: An Orientation
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Eosinophils (a) have a gray-blue cytoplasm, (b) have a spherical nucleus, (c) contain red cytoplasmic granules, (d) are anucleate.

Expert Solution
Step 1

Through the process of hematopoiesis, a blood cell is produced and also called a hematopoietic cell, hemocyte, or hematocyte and found mostly in the blood. Major types of blood cells are red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes).

Step 2

Eosinophils have granules that are 15-17 micrometers in diameter. The main functions of these granules include phagocytosis, cell killing, antigen presentation, and platelet interactions. These white blood cells contain four cationic proteins - eosinophil cationic protein, eosinophil-derived neurotoxin, major basic protein,  and eosinophil peroxidase. Their cytoplasm appears to have large rounded red-orange granules packed in it after staining using eosin dye by the Romanowsky method.

Therefore, option C is the correct answer.

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