The prostate gland secretory organ is an exocrine gland of the male productive system. Its main function is to store and secrete a benefit fluid that constitutes up to one-third of the volume of semen.
A kempt prostate is slightly larger than a walnut.
It is situated in front of the rectum, just below the bladder where urine is stored, and surrounds the thermionic tube (urethra) that carries urine from the body.
The gland functions as part of the male reproductive system by producing the white fluid that contains semen.
The prostate overly contains smooth muscle that helps expel semen during ejaculation; thus, prostate problems can lead to impotence.
The prostate gland has four manifest glandular regions:
1. The Peripheral Zone (PZ) - The sub-capsular portion of the posterior human face of the prostate gland which surrounds the distal urethra and comprises up to 70% of the sane prostate gland in young men. It is from this portion of the gland that more than 70% of prostatic cancers originate.
2. The central Zone (CZ) - This regularize constitutes around 25% of the normal prostate gland and surrounds the ejaculatory ducts. Central zone tumors account for more than 25% of all prostate cancers.
3.
The Transition Zone (TZ) - This zone is responsible for 5% of the prostate volume and very rarely is associated with carcinoma. The transition zone surrounds the proximal urethra and is the region of the prostate gland which grows throughout your lifetime. It is involved in benign prostatic enlargement.
4. The Anterior Fibro-muscular zone - This zone accounts for approximately 5% of the prostatic weight, is usually devoid of glandular components, and make up only, as its name suggests, of muscle and fibrous tissue.
Prostate Disorders
triad types of disorders can occur in the prostate gland: firing or infection (prostatitis), enlargement (benign prostatic hyperplasia - BPH), and cancer.
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