The scrotum, testes (testicles), vas deferens, seminal vesicles, and prostate comprise the rest of the reproductive system. The penis consists of the root (which is attached to the lower abdominal structures and pelvic bones), the visible part of the shaft, and the glans penis (the cone-shaped end).The opening of the urethra (the channel that transports semen and urine) is located at the tip of the glans penis.he penis consists of the root (which is attached to the lower abdominal structures and pelvic bones), the visible part of the shaft, and the glans penis (the cone-shaped end). The opening of the urethra (the channel that transports semen and urine) is located at the tip of the glans penis.
Colectomy is a surgical procedure to remove all or part of the colon. When only part of the colon is removed, it is called a partial colectomy.
1 Early-stage cancers may require only a small section of the colon to be removed during colectomy. Cancers at a later stage may require more of the colon to be removed.  Crohn's disease. If medications aren't helping you, removing the affected part of your colon may offer temporary relief from signs and symptoms. Colectomy may also be an option if precancerous changes are found during a test to examine the colon (colonoscopy).