Urogenital system II - male Flashcards
What is the proper ligament of the testes?
Attaches testis to tail of the epididymis
What is the ligament of the tail of the epididymis?
Attaches tail of the epididymis to the vaginal tunic
What are the proper ligament of the testes and ligament of the tail of the epididymis remnants of?
Gubernaculum
What is the function of te epididymis?
Store sperm before ejaculation
What side of the testis does the epididymis lie on?
Dorsolateral side
What are the 3 parts of the epididymis?
Head
Body
Tail
Continuing craniodorsally, what does the epididymis become?
Vas deferens
What is the function of the mesorchium (visceral vaginal tunic)?
Attaches medial edge of the epididymis to the testis
Where is the testicular bursa located?
between epididymis & testis
Is the vas deferens a continuation of the head or the tail of the epididymis?
Tail
Where does the vas deferens enter the abdominal cavity?
Vaginal ring
Where do the left and right ducts of the ductus deferens join?
Genital fold
Where does the ductus deferens pass in respect t the testis?
dorsmedial side
What structure, located within the vaginal tunic, does the testicular vein form?
Pampiniform plexus
What arteries supply the testis and epididymis?
Testicular artery
Artery of ductus deferens
Where does the spermatic cord pass through during descent to testis?
Vaginal ring and inguinal canal
What does the clinical spermatic cord contain that the anatomical spermatic cord does not?
Cremaster muscle
Parietal vaginal tunic
What is an open vs closed castration?
Opening the parietal vaginal tunic
When is it more common to do a closed castration?
When testes are small
Where do the ductus deferens ducts end?
Ampulla
Does the prostate contain the urethra?
Yes
Is the prostate considered retroperitoneal?
The ventral surface
Dorsal surface is covered by peritoneum
What is the colliculus seminalis?
Ductus deferens open in to urethra
What makes the trigone of the bladder in the male?
Ureteral orifices
Colliculus seminalis
What are the 3 divisions of the penis?
Root
Body
Glans
What forms the root of the penis?
Left & right crura
Bulb of the penis
What forms the body of the penis?
2 corpus cavernosa
What 2 structures form the glans of the penis?
Bulbus glandis
pars longa glandis
Where does the crus of the penis originate from?
Ischiatic tuberosity
What makes the crus of the penis?
Proximal end of the corpus cavernosum
What muscle surrounds the crus of the penis?
Ischiocavernosus
Where is the bulb of the penis located?
Between the crura
What muscle covers the bulb of the penis?
bulbospongiosus
What erectile tissue is located within the bulb of the penis?
corpus spongiosum
What 3 structures make the body of the penis?
Urethra
Corpus cavernos
Corpus spongiosus
What connective tissue structure surrounds the penis?
Tunia albuginea
What is the bulbus glandis?
Expansion of corpus spongiosum that causes ‘tie’
Is there a connection between the corpus spongiosum and the pars longa glandis?
No
The os penis is ossification of what tissue?
corpus cavernosua
What is located at the apex of the penis in adult dogs?
Fibrocartilage structure
What is the preputial orifice?
Where external and internal lamina of prepuce meet
What are the muscles of the penis?
Ischiocavernosus
Bulbospongiosus
Retractor penis
Ischiourethralis
Where does the bulbospongiosus muscle originate?
External anal sphincter
Which vertebrae do the retractor penis muscle originate from?
First 2 caudal
The internal pudendal artery of the penis gives off what branches to supply the penis with blood?
Dorsal artery of the penis
Deep artery of the penis
Artery of the bulbus penis
