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Histological Studies on Penis of the Boar (Sus scrofa domesticus)

Rajaraviteja Ersavadla; Rajendranath Nalla; Purushotham Gudepu; Lakshman Mekala.

Abstract
Histological features confirmed that penis of boar was a fibroelastic organ with a corpus cavernosum and corpus spongiosum. The caverns were surrounded by connective tissue trabeculae with smooth muscle cells. Helicine arteries with epithelioid smooth muscle cells in tunica intima were in the corpus cavernosum penis. Cavernous spaces of both corpus cavernosum and spongiosum were lined by single layer of endothelium. Tip of the penis was intimately covered by visceral layer of the prepuce which was lined by stratified squamous epithelium. Large solitary lymphatic nodules were seen in internal layer of prepuce. The penile urethra was enclosed in corpus spongiosum. Urethra mucosa was thrown into longitudinal folds with transitional epithelium from external urethral orifice to bulbous part. Average thickness of transitional epithelium at root, body and glans was 27.3 ± 1.42 µm, 58.5 ± 1.42 µm and 78 ± 1.42 µm respectively.

Key words: Corpus cavernosum;Corpus Spongiosum;Histology;Tunica Albuginea


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