Reproductive Anatomy Flashcards
Reproductive system comes from which embryological tissue?
Mesoderm
Seminal vesicle, epididymis, ejaculatory duct and ductus deferens arise from what duct?
Wolffian/mesonephric duct
Primitive testis and ovary lays on top of what structure?
Kidney
The uterus and upper 1/3 of the vagina are from which duct that runs parallel to mesonephric duct?
Paramesonephric/Mullerian duct
Where are spermatozoa produced?
Seminiferous tubules of the testis under influence of testosterone
Testosterone is secrted by what cells under the influence of luteinizing hormone?
Interstitial cells of Leydig
Testosterone attached to what cells found in the seminiferous tubules of the testis?
Sertoli cells
Where are the testis found?
In the scrotum
Tests is suspended by what in the lower part of the scrotum?
Spermatic cord
The testis is enclosed in a thick fibrous capsule called the?
Tunica Albuginea
Testis is divided by septa into how many lobules and how many seminiferous tubules do they hold?
300 lobules
1-4 seminiferous tubules
Seminiferous tubules empty into how many straight tubules which join to form what which empties into the epididymis via 15-20 efferent ductules?
25 straight tubules
Rete testis
Testis is covered in 7 layers what are they?
Skin, Colles fascia, external spermatic fascia, cremasteric muscle, internal spermatic fascia, parietal layer of tunica vaginalis, visceral layer of tunica vaginalis
What muscle under sympathetic control is in Colles fascia?
Dartos muscle
The external spermatic fascia comes from what?
External oblique aponeurosis
The cremastric muscle and fascia come from what?
Internal obliue muscle
The internal spermatic fascia comes from what?
Transversalis fascia
The parietal layer of the tunica vaginalis comes from?
The peritoneum
Where do sperm mature?
Epididymis
Where are sperm stored?
Ductus deferens
On ejaculation the sperm travel how far up the ductus deferens?
18”
The ductus deferens joined at terminal end by the seminal duct forming what duct?
Ejaculatory duct
The ejactulatory duct opens into the?
Prostatic urethra
The spermatic cord is 7-8 cm long and extends from where?
Deep inguinal ring to superior pole of testes
3 coverings of the spermatic cord?
external spermatic fascia, cremasteric muscle and fascia and internal spermatic fascia
3 arteries of the spermatic cord?
Testicular A, A to the ductus deferens and cremasteric A
3 nerves of the spermatic cord?
Testicular N, genital br of genitofemoral N and ilioinguinal N (outside)