Erectile bone - Definition

The baculum (also penis bone, penile bone or os penis) is a bone found in the penis of most mammals. It is absent in humans. It is used for copulation and varies in size and shape by species. Its characteristics are sometimes used to differentiate between similar species.

Although many mammals have a penile bone, humans do not, instead providing the rigidity of the erection entirely through blood pressure in the corpus cavernosum.

Examples of species with a penile bone include the rat, dogs and the walrus.

External links

Beresford WA, Burkart S. The penile bone and anterior process of the rat in scanning electron microscopy. (http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=604330&dopt=Abstract) J Anat. 1977 Dec;124(3):589-97.
Some pictures of real and replica penis bone samples (http://www.skullsunlimited.com/baculums.html)

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Example Usage of Erectile
	cbtwfff: Erectile Dysfuncton Cured For Nickels A Day!: Nickels-A-Day Replacement For Viagra, Cialis & Levitra. Long Blas.. http://bit.ly/4AMpjq
	erincharp: @mrsF5 No joke. I'd tie that Erectile dysfunction ad into a vacuum cleaner ad, and BAM. Sales would triple.
	MrVoodoo: RT @tygr20: If you're talking to your reflection about your Erectile dysfunction, you're having more significant problems than that

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Erectile bone - Definition

See also

External links

Example Usage of Erectile