Qqi

Figure 1-59

Adrenal Cortex Outer zone of rounded groups of cells (zona glomerulosa) secretes mineralcorticosteroids (aldosterone). Middle zone of cells appearing in rows (zona fasciculata) secretes glucocorticosteroids. Innermost zone of cells arranged in a meshwork (zona reticularis) secretes mainly androgens. (X50)

Zona glomerulosa

Zona fasciculata

Zona reticularis

Figure 1-59

Adrenal Cortex Outer zone of rounded groups of cells (zona glomerulosa) secretes mineralcorticosteroids (aldosterone). Middle zone of cells appearing in rows (zona fasciculata) secretes glucocorticosteroids. Innermost zone of cells arranged in a meshwork (zona reticularis) secretes mainly androgens. (X50)

Zona glomerulosa

Zona fasciculata

Zona reticularis

Barr Bodies Nucleus

Figure 1-60

Neutrophil Most numerous (65%) of the leukocytes, it is characterized by a multilobed nucleus and granular cytoplasm. Engages in phagocytosis. (Neutral dyes stain; X640)

Barr body Nucleus

Figure 1-60

Neutrophil Most numerous (65%) of the leukocytes, it is characterized by a multilobed nucleus and granular cytoplasm. Engages in phagocytosis. (Neutral dyes stain; X640)

Barr body Nucleus

Images Barr Body

Histology

Basophil Histology

Figure 1-61

Basophil Normally the rarest (1%) of the leukocytes, its kidney-shaped nucleus may be almost obscured by cytoplasmic granules. These cells contain numerous chemicals involved in inflammation. (Basic dyes stain; X640)

Figure 1-61

Basophil Normally the rarest (1%) of the leukocytes, its kidney-shaped nucleus may be almost obscured by cytoplasmic granules. These cells contain numerous chemicals involved in inflammation. (Basic dyes stain; X640)

Human Basophil Lobe Shape

Figure 1-62

Eosinophil Relatively rare (6%) leukocyte. Usually identifiable because of red-to-orange-staining cytoplasmic granules. Function not definitely known but elevated especially in allergies. (Selective eosin stain; X640)

Nucleus (two lobes)

Granules

Figure 1-62

Eosinophil Relatively rare (6%) leukocyte. Usually identifiable because of red-to-orange-staining cytoplasmic granules. Function not definitely known but elevated especially in allergies. (Selective eosin stain; X640)

Nucleus (two lobes)

Granules

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