Somali Medical Forums
Medical Student Forums => Basic Medical Science => Topic started by: Munim on December 13, 2007, 10:39:01 PM
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Anatomy of the Male genital organs
Male genital organs are divided into:-
A- Internal genital organs:-
They are:- 1-Testis 2-Epididymis 3-vasdeferens 4-seminal vesicles 5-prostate 6- bulbo urethral glands.
B- External Genital organs:-
They are 1-Penis 2-and Scrotum.
Internal genital organs:-
1- Testis :-
• ovoid organ, weight (10-14g)
• located in the scrotal sac
• has medial and lateral convex surface anterior and posterior borders upper and lower poles
• Divides into 250 lobules (each has 2-3 seminiferous tubules).
2-Epididymis :-
• comma shaped and consist of tortuous duct
• 6cm in length, the unfolded length is about 6m
• closely applied to the posterior border of testis
• made up of head body & tail
• sperm may stored for up to 4weeks
• continuation of the tail of Epididymis
• fibro muscular tube 45cm long
• enters the spermatic cord and inguinal canal
• At it’s termination it is joined by a duct from seminal vesicles to form the ejaculatory duct.
3-Seminal vesicles:-
• each is lobulated structure 5cm long situated between the base of the bladder and rectum
• joins the ducts deferens to form the ejaculatory duct
• Average capacity (1.5-3ml).
4-Prostate:-
* Fibro muscular glandular organ
* Cone-shaped with apex inferior
* It is 3cm in each dimension
* located below the neck of the bladder
* The prostatic urethra passes downwards from its base to apex
5-Bulbo urethral glands:-
* Globular in shape
* Less than 1cm in diameter
* lies between the lower part of the prostate and the bulb of penis.
External Genital organs:-
1- Penis:-
• Male organ of copulation
• Consist of erectile tissues
• Formed of (3) cylinders (2) corpora cavernous (forming the crura) and one corpus spongiosum (forming the bulb).
• The 3 structure merge to form the body of the penis
• The corpus spongiosum extends anteriorly to form gland penis
• The body of the penis is enclosed in a thin skin which reflected at the neck of the penis to form the prepuce.
2- Scrotum:-
• a bag of skin and fascia
• lies in uro-genital triangle
• divided in to two compartments
• each contains a testis,epididymis and the first part of ducts deferens.
Thanks
By:-Munim