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OJVRTM
Online Journal of Veterinary Research©
Volume 20(11):691-697, 2016.
Histomorphometry of adrenal gland of squirrel (Sciurus
anomalus).
Nader Goodarzi1, Ghasem
Akbari2
1Department(s)
of Basic Science, Faculty(s) of Veterinary Medicine, Razi
University, Kermanshah, 2University
of Tabriz, Tabriz, Iran.
ABSTRACT
Goodarzi
N, Akbari G.,
Stereological histology-morphometry of adrenal gland of squirrel (Sciurus anomalus), Onl J Vet Res., 20(11):691-697, 2016. Histomorphometric histology of
the adrenal gland in 5 Persian squirrels using stereological methods is
described. The glands were pyramid-shaped
located at the cranial pole of the kidneys, weighed 0.9 ± 0.11g and were covered by a capsule of smooth
muscle cells. Volume of
adrenal glands was estimated by Cavalieri's principle
to be 0.86
± 0.03
. The average volumes
of the cortex were 0.62 ± 0.06, medulla 0.24 ± 0.05, zona glomerulosa 0.15± 0.02, fasciculata 0.42 ± 0.05 and reticularis 0.05 ± 0.01 . An intermediate zone
was not apparent. The zona glomerulosa consisted of clusters, and cells of the
zona fasciculata had an eosiniphilic
cytoplasm without vacuoles. The adrenal medullae were oval-shaped with cells forming
regular clusters with an oval pale nucleus and a basophilic cytoplasm. Reticularis cells penetrated into the medulla with
invaginations into cortex. Microscopic images are provided.
KEY WORDS: Persian squirrel, Adrenal gland, Stereology,
histology.