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Prostate Gland, Seminal vesicle & Ejaculatory Ducts Dr. Sama-ul-Haque Dr. Sama-ul-Haque.

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Presentation on theme: "Prostate Gland, Seminal vesicle & Ejaculatory Ducts Dr. Sama-ul-Haque Dr. Sama-ul-Haque."— Presentation transcript:

1 Prostate Gland, Seminal vesicle & Ejaculatory Ducts Dr. Sama-ul-Haque Dr. Sama-ul-Haque

2 Objectives   Discuss the site, size and relation of prostate.   Describe the fasciae covering and related to the prostate (true and false capsules).   Describe its anatomical and surgical lobes.   Discuss its blood, nerve supply and lymphatic drainage.   Compare between the site of enlargement of the prostate in senile prostatic hyperplasia and cancer prostate.

3 Objectives   Define the seminal vesicle.   Discuss its site, relation, blood and nerve supply.   Discuss its lymphatic drainage.   Define the ejaculatory duct.   Describe its site, beginning and termination.

4 Prostate Gland   Fibromuscular glandular organ   Glandular part : 2/3 rd   Fibromuscular part: 1/3 rd   Site: Lies between the neck of the urinary bladder above and the urogenital diaphragm below   Size: 1.25 inches (3 cm)

5 Prostate Gland   Relations: Superiorly:   Neck of the urinary bladder   Urethra enters the center of the base of the prostate Inferiorly:   Urogenital Diaphragm   Urethra leaves prostate just above its apex on the anterior surface

6 Location of Prostate Gland

7 Prostate Gland   Relations: Anteriorly:   Symphysis pubis   Puboprostatic ligaments (Pubic bones) Posteriorly:   Rectal Ampulla   Fascia of Denonvillier (Rectoprostatic fascia) Laterally:   Levator Ani

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9 Capsule of the Prostate Gland   True capsule: Prostate is surrounded by a fibrous capsule which contains prostatic plexuses of nerves and veins   False capsule: Visceral layer of pelvic fascia forms a fibrous prostatic sheath outside the true capsule

10 Prostate Gland   Apex   Base   Anterior surface   Posterior surface   Inferolateral surfaces

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12 Anatomical lobes of Prostate Gland 1.Anterior lobe   Lies in front of urethra   Muscular   Devoid of glandular tissue 2.Median or Middle lobe   Lies between urethra and the ejaculatory ducts   Glandular

13 Anatomical lobes of Prostate Gland 3.Posterior lobe   Lies behind urethra and below ejaculatory ducts   Glandular 4.Right lateral lobe   Lies on the side of the urethra   Glandular 5.Left lateral lobe   Lies on the side of the urethra   Glandular

14 Blood supply of Prostate Gland   Arterial supply:   Branches of Internal Iliac artery   Branches from inferior vesical artery   Branches from middle rectal artery   Branches from Internal pudendal artery   Venous drainage   Veins form prostatic plexus   Drain into internal iliac vein

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17 Lymphatic drainage & Nerve supply of Prostate Gland   Lymphatic drainage   Internal iliac nodes   Nerve supply   Inferior hypogastric plexus

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20 Benign Prostatic Hypertrophy (BPH)   Occurs in middle age   Median or Middle lobe is involved   Projects into urinary bladder   Obstructs prostatic urethra and internal urethral orifice

21 Prostatic Cancer   Occurs in old age (after 55 years usually)   Posterior and lateral lobes are involved   Palpated during PR examination   Can spread to iliac and sacral lymph nodes and can spread to vertebral column and brain through venous channels

22   Prostatectomy   TURP (Transurethral resection of prostate)

23 Seminal vesicles   Lobulated organ   2 inches (5 cm) long   Lies on the posterior surface of the urinary bladder   Seminal vesicle joins the vas deferens to form ejaculatory ducts on each side

24 Blood supply of Seminal vesicles   Arterial supply   Branches from inferior vesical artery   Branches from middle rectal artery   Venous drainage   Drain into internal iliac vein   Lymphatic drainage   Internal iliac nodes

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26 Ejaculatory ducts   Less then 1 inches (2.5 cm) long   Formed by the union of duct of seminal vesicle and vas deferens   Pierce posterior surface of the prostate   Opens into the prostatic part of the urethra

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28 Thank You


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