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56 Cards in this Set
- Front
- Back
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Describe the orientation of the testes in the stallion.
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Horizontal with epididymis on the dorsal aspect; cauda epididymis is caudal.
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Describe the orientation of the testes in the bull.
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Vertical with epididymis on the cranial aspect; caput of epididymus is located dorsally
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T or F:
The bull scrotum may reach the level of the hock |
True!
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Lets play stallion or bull:
Larger 'nads... |
...BULL
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Lets play stallion or bull:
Rudimentary scrotal teats |
BULL
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Lets play stallion or bull:
Scrotum located at the level of the pubic symphysis |
Stallion (Bull scrotum is farther cranial)
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What are the layers of the scrotum and testis from superficial to deep?
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Skin
Tunica dartos External spermatic fascia Internal spermatic fascia Parietal vaginal tunic Vaginal cavity Visceral vaginal tunic Testis |
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Which layers comprise the clinical vaginal tunic?
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Internal spermatic fascia
parietal vaginal tunic |
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What structures run within the spermatic cord?
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Ductus deferens
Testicular a., v., and n. Artery and vein of the ductus deferens Efferent testicular lymphatics |
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Let's play Stallion or Bull...
Sac-like vesicular gland |
Stallion
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Let's play Stallion or Bull...
Disseminate prostate |
Bull
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Let's play Stallion or Bull...
"wedding-ring" prostate |
Bull
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What is the "full house" for accessory sex glands?
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Ampullary gland
Vesicular gland Prostate Bulbourethral gland |
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T or F:
The bulbourethral gland of the stallion covers the urethralis m. |
False!
The urethralis covers the bulbourethral |
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What is the fetal remnant of the uterus in the stallion?
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Uterus masculinis
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T or F:
The ruminant has no lumen in the vesicular gland. |
True!
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T or F:
The urethralis muscle covers the bulbourethral gland in the ruminant. |
False!
Dense CT and bulbospongiosus m. covers the bulbourethral gland |
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Let's play Stallion or Bull...
Single duct for each bulbourethral gland |
Bull
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Match the animal with the semen volume:
Bull 1mL Ram 10mL Boar 35mL Stallion 500mL |
Bull 10mL
Ram 1mL Boar 500mL Stallion 35mL |
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Where does the equine penis attach?
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Ischial arch via two crura
Ischial symphysis by suspensory ligaments |
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Where does the body of the penis begin?
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Junction of the two crura
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Which muscle is associated with the root of the penis?
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Ischiocavernosus m.
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Which muscle is associated with the body of the penis?
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Bulbospongiosus m.
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What tissue surrounds the penile urethra?
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Corpus spongiosum penis
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T or F:
The dorsal process of the glands is comprised of corpus spongiosum glandis |
Tru dat!
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What term describes the greatest circumference of the glans penis?
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Corona glandis
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Where does the smegma bean form in stallions?
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In the urethral sinus of the fossa glandis
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T or F:
In the bull, the sigmoid flexure is caudal to the scrotum. |
True!
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Which part (proximal or distal) of the sigmoid flexure of the ruminant penis is a common lodging point for urethral calculi?
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Proximal flexure
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Which part (proximal or distal) of the sigmoid flexure of the ruminant penis is a penile fracture possible?
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distal flexure
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T or F:
The bull has a dorsal urethral diverticulum. |
True!
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What is the extension of the urethra in the ram and buck called?
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Urethral process
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What muscle is the continuation of the urethralis muscle on the penile urethra?
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Bulbospongiosus m.
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What is the origin and insertion for the retractor penis m. in the horse?
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Origin - 1st and 2nd Ca vertebrae
Inserts - on tunica albuginea near glans |
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What is the pressure difference in the corpus cavernosum of an erect vs. a flaccid bovine penis?
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Erect - 75-80mm Hg
Flaccid - 5-16mm Hg |
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What is the midpoint of the equine preputial fold called (also the entrance to the INNER preputial sleeve)?
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Preputial ring....THE GUARDIAN OF THE PREPUCE
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Let's play bull or stallion...
...long preputial cavity |
Bull!
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T or F:
The sigmoid flexure of a boar is cranial to the scrotum. |
True!
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T or F:
The boar has a preputial diverticulum. |
True!
It also has a dorsal diverticulum of the urethra! |
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What happens to the sex organs of castrated animals?
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they atrophy
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Where is the scrotum/testes located in the boar?
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Perineal region
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What is remarkable about the boar's penis?
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Spiraled free-part
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Describe the location of the scrotum and testes of the male camelid.
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Perineal region.
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T or F:
Due to the perineal location of the testes, the male camelid must squat to urinate. |
False!
This is due to the caudal orientation of the preputial orifice. |
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What are the main blood supplies of the equine penis?
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Internal pudendal a.
Obturator a. External pudendal a. |
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T or F:
The penis of the boar is adhered to the prepuce until 2-3 years of age. |
False!
This describes camelids! |
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What are the main branches of the internal iliac artery in the stallion?
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Caudal gluteal
Internal pudendal |
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T or F:
The umbilical artery gives rise to the artery of the ductus deferens in the bull and stallion. |
True! However the umbilical arises from different regions (internal iliac in ox and int. pudendal in horse)
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T or F:
The obturator artery arises from the internal iliac artery in all ruminants. |
False!
In the goat, it arises from cranial gluteal. |
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What are the main blood supplies to the penis in the bull?
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Internal pudendal ends as artery of the penis. Gives rise to:
Artery of the bulb of the penis Deep a. of the penis Dorsal a. of the penis |
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Which arteries supplying the stallion penis arise from the internal pudendal artery?
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Int pud becomes artery of the penis; gives rise to:
a. of bulb of penis dorsal a. of the penis |
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Which arteries supplying the stallion penis arise from the obturator a.?
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Middle a. of the penis gives rise to deep a. of the penis
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Which arteries supplying the stallion penis arise from the external pudendal artery?
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Gives rise to cranial a. of the penis
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Where do the equid superficial inguinal lnn. drain to?
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Deep inguinal lnn.
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Where do the deep inguinal lnn. drain to?
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Middle iliac lnn.
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T or F:
The deep inguinal lymph nodes may be palpated rectally in the stallion. |
False! However the MEDIAL ILIAC lnn. may be if inflamed
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