Figure 2.

Transverse section of the western grey kangaroo (Macropus fuliginosus) penis reveals the arrangement of the three cavernous bodies: two lateral corpora cavernosa (CC) and a single corpus spongiosum (CS) which surrounds the urethra (U). The cavernous bodies extend into the paired M. ischiocavernosi and M. bulbospongiosi, respectively. Martius Scarlet Blue stain highlights the thick collagenous tunica albuginae (TA) surrounding the CC, and intervening medial septum. Urethra filled with red‐stained (fibrin) mucous exudate from bulbourethral glands postmortem.