Understanding the Male Anatomy (cont.)
The penis consists of three main parts: the root, the body, and the glans penis.
- The root is attached to the abdominal and pelvic wall.
- The body is the middle portion. The body of the penis consists of three cylindrical spaces of soft tissue. When the two larger spaces fill with blood, the penis becomes large and rigid, forming an erection.
- Two larger cylindrical spaces of soft tissue, called the corpora cavernosa, are located side by side and form the bulk of the penis.
- The third cylindrical space of soft tissue, called the corpus spongiosum, surrounds the urethra, which forms the urinary passage.
- The glans penis is the cone-shaped end or head of the penis, which is the termination of the corpus spongiosum. The small ridge that separates the glans penis from the shaft or body of the penis is called the corona.
Stephen W Leslie, MD, FACS