exam 3: Male repro Flashcards
Male gonad (testicle) produce ________ and ___________
spermatozoids & hormones
Identify 1-3
1.Tunica albuginea
- Testicular parenchyma-Seminiferous tubules
3.Epididymis
identify 1 and 2
- Rete testis
- Efferent ductules
List the parts of the epididymis
head, body, tail
what is the position of the head of the epididymus
Positioned craniodorsally
identify
- tail of epididymus
- body of epididymus
- head of epididymus
identify 1 and 2
- parietal vaginal tunic
- cremaster m.
identify 1 and 2
- ductus deferens
- head of epididymus
Scrotal position of a dog
Inguinal position
Scrotal covering of a dog
sparse hair
How many layers are there of the Scrotum
– Epidermis
– Dermis
-Tunica dartos
-External spermatic fascia
-Internal spermatic fascia
-Parietal vaginal tunic
If I were to put a pin the the scrotum and went to the 4th layer.
what layer am I in
Internal spermatic fascia
If I were to put a pin the the scrotum and went to the 6th layer.
what layer am I in
Parietal vaginal tunic
what is the pink/grey layer representing
skin and tunica dartos
what are the layers of the Vaginal tunics
Parietal vaginal tunic
Visceral vaginal tunic
Vaginal cavity
what layer of vaginal tunic is in green
Visceral vaginal tunic
what layer of vaginal tunic is in red
Parietal vaginal tunic
identify
- cremaster m.
- External & internal abd. Oblique mm
3.Vaginal ring
identify
1.Parietal peritoneum
2.Deep inguinal ring
identify
1.Testicular a., v., l, & n
2.Vaginal process
identify
1.Ductus deferents
2.Superficial inguinal ring
identify
- Mesorchium
- Mesofuniculum
- Mesoductus deferens
identify
Testicular vessels
Cremaster muscle Origin:
caudal free border of the internal abdominal oblique m.
Cremaster muscle Insert:
spermatic fascia & parietal vaginal tunic
Cremaster muscle Action
pull the testis closer to the body in response to a cremasteric reflex
Cremaster muscle is innervated by which nerve
genitofemoral n. (L3-L4)
Spermatic Cord Components (7)
- Testicular a.
- Testicular v. & pampiniform plexus
- Testicular n.
- Testicular lymphatics
- Ductus deferens
- Deferent a. and v.
- Internal cremaster m.
Internal cremaster m
is it smooth or skeletal muscle
smooth muscle
identify
Testicular v. & pampiniform plexus
be able to label basic anatomy
Accessory sex glands in the male dog (2)
*Prostate
*Ampullary glands
Accessory sex glands in the male dog Function
Adds volume to __________ to provide a vehicle for sperm
ejaculate
Accessory sex glands in the male dog function:
Provides a source of energy for _________
sperm
Accessory sex glands in the male dog function:
Acts as a ______ for sperm by neutralizing the Ph in urine and the ____ produced by sperm
buffer
CO2
Accessory sex glands in the male dog function:
Production of prostaglandins that cause _____________
smooth muscle contraction of female reproductive tract
Identify A and B
A:Deferent duct
B: Ampulla
Prostate
normal or abnormal
A: Normal
B: Abdormal
what are the parts of the male canine urethra
*Pelvic part
*Penile part (spongy)
Located on dorsal surface of prostatic urethra
Colliculus seminalis
Deferent ducts open on each side of the ____________
colliculus seminalis
Colliculus seminalis is the continuation of the _______________
urethral crest
Identify the regions of the canine penis
- Glans penis
- Body
3.Root
Erectile tissue of the penis is Dense __________ tissue with many __________fibers and sinuses
collagenous
elastic
identify #10
*Corpus cavernosum penis
identify 11
*Corpus spongiosum penis