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===Muscles of the Penis===
 
===Muscles of the Penis===
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====Bulbospongiosus====
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A single muscle that covers the root and ventral surface of the penis as well as the bulbourethral glands, extending to the apex of the penis. It is a continuation of the ''urethralis'' muscle.  The function of this muscle is to empty the extrapelvic urethra of sperm in a similar way to the urethralis muscle emptying the pelvic urethra.
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====Ischiocavernosus Muscles====
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These are paired muscles located at the root of the penis which arise from the ischial arch and enclose the '''crura'''. They connect the penis to the ischial arch of the pelvis.
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====Retractor penis Muscles====
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These paired muscles originate on the caudal vertebrae and insert on the ventrolateral surfaces of the penis. They follow the bulbospongiosus muscle to the epex of the penis.
    
==Accessory Sex Glands==
 
==Accessory Sex Glands==
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