crura

…long structures known as the crura, which are made up of nonerectile tissue. The body, crura, corpora cavernosa, and bulbs together are shaped like a wishbone, with the latter three tissues forming the arms of the wishbone, which hug the urethra and vagina. During sexual excitement, the corpora cavernosa and…

…of the penis comprises two crura, or projections, and the bulb of the penis. The crura and the bulb are attached respectively to the edges of the pubic arch and to the perineal membrane (the fibrous membrane that forms a floor of the trunk). Each crus is an elongated structure…