Definitions for "Corpus Cavernosum"
The penis contains two sets of erectile tissue in the shaft, each called a corpus cavernosum. During erection blood flows into these faster than it leaves and so the penis swells in size. Plural = Corpa cavernosa
Body of tissue inside the penis containing thousands of expandable saclike structures known as sinuses. When the sinuses fill up with blood, an erection results.
the spongy tissues of the penis that, when engorged with blood, cause the penis to become erect