Penis of a Pig, Low Power

Low power micrograph of the penis from a pig. The three erectile cylinders are bound by connective tissue layers (tunica albugina). The TA is thicker around the corpora cavernosa than that around the corpus spongiosum. The corupus spongiosum contains the penile urethra. Micrograph courtesy of Dr. Joseph Alroy. H&E. Penis. Male Reproductive System. Pig.