Home Contact Us Site Map
Search for:
Classes & Programs WebNursery
Health Info Find a Job Find a Physician
About St. John's Mercy
St. John's Mercy Medical Center - St. Louis
St. John's Mercy Hospital
Services and Specialties
Information for Patients
For Health Professionals
St. John's Mercy Medical Group
St. John's Mercy Health Services
St. John's Mercy Quality
Foundation
E-mail a Patient
Privacy Statement
Vendor Resources
 
Home > Health Information > Adult Health > Prostate  Printer Friendly Page Printable Version

Anatomy of the Prostate Gland

Illustration of the anatomy of the male reproductive tract
Click image to enlarge

Facts about the prostate gland:

The prostate gland is about the size of a walnut and surrounds the neck of a man’s bladder and urethra - the tube that carries urine from the bladder. It is partly muscular and partly glandular, with ducts opening into the prostatic portion of the urethra. It is made up of three lobes: a center lobe with one lobe on each side.

Function of the prostate gland:

As part of the male reproductive system, the prostate gland’s primary function is to secrete a slightly alkaline fluid that forms part of the seminal fluid, a fluid that carries sperm. During male climax (orgasm), the muscular glands of the prostate help to propel the prostate fluid, in addition to sperm that was produced in the testicles, into the urethra. The semen then leaves the body out through the tip of the penis during ejaculation.

Click here to view the
Online Resources page of this Web.

Find A Doctor
Genitourinary Surgery

Radiation Oncology

Urology

Pediatric Urology

Family Medicine

Topic Content
Site Index

Anatomy of the Prostate Gland

Benign Prostate Problems

Prostate Cancer

Glossary

Online Resources

A member of the
Sisters of Mercy Health System