The penis is the male organ
of coition through it urine and
semen go out via the penile
urethra. The prepuce is an
introverted fold of abdominal
cavity skin that surrounds the
free margin of the penis. There
are scarce studies regarding
male dog genital system in Iraq. Therefore, this study intends to study
the gross and histological features of the penis of the local dog. Five
local adult dogs used in this study. Penis gross anatomy including the
length, width, and Os – penis were evaluated. In addition, histological
sections were also prepared from penis and Os –penis and stained
with hematoxylin – eosin. Anatomically, the average length and
width of the dog penis were 17 cm, and 2 cm respectively, while the
Os – penis length was about 13 cm. The penis composed from root,
body, and glans or free part, which appeared as a cone shape.
Histologically, the body consist from corpus cavernosum and
spongiosum while, the Os – penis was composed essentially of
spongy bone. Moreover, the corpus cavernosum revealed to consist
of intermediate caverns and connective tissue. The corpus
spongiosum composed from large caverns. The skin of dog penis is
devoid of hair as a result of absent of hair follicles. A part from
retractor penis muscle was composed of smooth muscle. In
conclusion, this study described the macroscopic and microscopic
structures of dog penis and approved that dog penis classified as
intermediate type according to the corpus cavernosum structure.
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Author Name: Alaa, H. Saadon
URL: View PDF
Keywords: local dog, penis, Os – penis, Anatomy, Histology
ISSN: 2520-324X
EISSN: 2307-8073
EOI/DOI: DOI: 10.22428/mrvsa. 2307-8073
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