Anatomy study note · Pelvis

Prostate

A fibromuscular gland about 3 cm long surrounding the prostatic urethra, between the bladder neck above and the urogenital diaphragm below.

Key points

• Surrounds the prostatic urethra; 5 lobes.
• Median lobe → BPH obstruction at the bladder neck.
• Posterior surface felt per rectum.
• Prostatic venous plexus ↔ vertebral veins → bone metastases.
• Supply: inferior vesical + middle rectal arteries.
• Inner zone (mesodermal buds): BPH. Outer zone: carcinoma.
• Mucosal / submucosal / main glands.
• Corpora amylacea; BPH involves the mucosal glands.

The full note in the atlas also covers

Relations · Features · Blood supply · Nerve supply · Lymph drainage · Histology · Development · Clinical notes

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Written from

• Snell’s Clinical Anatomy by Regions, 10th ed., ch. 9, PDF pp. 1105–1110
• Inderbir Singh’s Human Embryology, ch. 16, PDF pp. 290, 307
• BRS Cell Biology & Histology, 7th ed., ch. 20, PDF pp. 370–372

More from the pelvis

• Pubic symphysis
• Rectum
• Sacral plexus
• Sacrococcygeal joint
• Sacroiliac joint
• Sacrotuberous and sacrospinous ligaments
• Sacrum
• Seminal vesicle
• Sigmoid colon
• Urinary bladder
• Uterine artery
• Uterine tube

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