Which statement describes the Os penis?

Which statement describes the Os penis?

• A. A nerve in the reproductive tract.
• B. A bone in the leg.
• C. The visceral bone in the penis of dogs that partially surrounds the penile portion of the urethra.
• D. A gland secreting testosterone.

Answer: (C)

The main idea is that the Os penis is a bone inside the penis. In dogs it is a visceral bone, sometimes called the baculum, that sits within the penile tissue and partially surrounds the urethra along the penile portion. This structure provides rigidity during erection and mating. It is not a nerve, not a leg bone, and not a gland; those descriptions refer to different tissues or organs.

The main idea is that the Os penis is a bone inside the penis. In dogs it is a visceral bone, sometimes called the baculum, that sits within the penile tissue and partially surrounds the urethra along the penile portion. This structure provides rigidity during erection and mating. It is not a nerve, not a leg bone, and not a gland; those descriptions refer to different tissues or organs.