Male Repro Flashcards
(33 cards)
What is the inguinal canal?
Opening in the caudal part of the abdominal wall. Testes descend into scrotum here
Where does the inguinal canal extend?
Deep inguinal ring to the superficial inguinal ring
What forms the superficial inguinal ring?
Aponeurosis of the EAO where it splits into a pelvic insertion and an abdominal insertion
What are the boundaries of the deep inguinal ring?
Caudal: Inguinal ligament
Cranial: caudal free edge of IAO
Medial: lateral edge of prepubic tendon
Structures passing cranial to the inguinal ligament are..
Going through the inguinal canal
What structure are going through the inguinal canal in a stallion? (6)
- Vaginal ring
- Parietal vaginal tunic
- Spermatic cord
- Cremaster m
- Genitofemoral n
- External pudendal a
What is the parietal vaginal tunic?
Where the parietal peritoneum evaginates through the inguinal canal around the structures of the spermatic cord
What is the vaginal ring?
Ring of peritoneum around the spermatic cord as it leaves the abdominal cavity and passes through the deep inguinal ring
What structures pass through the inguinal canal in the mare?
- Genitofemoral n
- Branches of L2
- External pudendal artery
- NO vaginal process
What structures pass through the inguinal canal in the mare?
- Genitofemoral n
- Branches of L2
- External pudendal artery
- NO vaginal process
What is in the Clinical spermatic cord? (9)
- ductus deferens
- Mesoductus deferns
- Testicular artery
- Testicular veins
- Lymphatics of testis and epididymis
- Testicular nerve plexus
- Mesorchium
- Cremaster m
- Parietal vaginal tunic
What are the types of penis?
- Musculocavernous
2. Fibroelastic
Describe the musculocavernous penis?
- Blood filled spaces predominate over CT.
- No sigmoid flexure
- Flaccid when not erect
- Seen in stallions and carnivores
Describe the fibroelastic penis.
- Fibro-elastic trabeculae prodominate
- Sigmoid flexure
- Firm when not erect
- In pigs and ruminants
What is the corpus spongiosum?
Surrounds the urethra
What is the corpus spongiosum?
Surrounds the penile urethra and expands to form the glans and dorsal process of glans
What is the corpus cavernosum?
Provides rigidity
Where is the glans?
Caps the distal end of the corpus cavernosum
What is the dorsal process of the penis?
Caudal extension of the glans on the dorsal surface
What is the collum glandis?
Constriction of the middle of the glans
What is the corona glandis?
Circular edge that contains papillae
What is the fossa glandis?
Cranial indented surface of the glans
What is the dorsal recess of the fossa glandis?
Urethral sinus
What forms the prepuce?
External fold (prepuce proper) Internal fold (preputial fold)
