Veterinary male reproductive system Flashcards
Male genital organs
organa genitalia masculina
term for the science concerned with reproduction of animals
theriogenology
What are the secondary genital organs of the male?
refers to the the duct system
the epididymis,
the deferent duct,
the urethra, and
the penis
What are the accessory organs of the male?
paired ampullary glands
vesicular glands
prostate gland
bulbourethral glands
What hormones is the male repro. system dependant on?
follicle-stimulating hormone (FSH)
luteinizing hormone (LH)
testosterone
Where is LH hormone produced?
luteinizing hormone produced in pituitary gland
latin and greek for testicle
testis; orchis
What are the testicles’ orientation in domestic species?
horizontal in most species
(meaning testicular head-end positioned cranial direction)
exception is ruminants in which orientation is vertical (head-end positioned dorsally/upward)
free border
margo liber
testicular tail-end
extremitas caudata
margo liber directed which way in which species
ventrally in most species
laterally in Ru
caudally in su and fe
epididymal border
margo epididymalis
margo epididymalis directed which way in which species
dorsally in most species
medially in Ru
cranially in su
testicle is covered by a dense white tunic called what?
tunica albuginea
septa of the testicle
septula testis
testicular parenchyma
parenchyma testis
What divides the testicle into what type of parts?
testicular mediastinum and septa divide it into lobules
testicular parenchyma consists of?
the seminiferous tubules
convoluted seminiferous tubules
tubuli seminiferi contorti
What structure more specifically, produces sperm and estrogen?
the convoluted seminiferous tubules with spermatogenic epithelium
spermatogenic epithelium
epithelium spermatogenicum
the convoluted seminiferous tubules continue as the..?
the straight seminiferous tubules / tubuli seminiferi recti
what connects the seminiferous tubules to the head of the epididymis
the mediastinum testis which is a central connective-tissue area containing the rete testis, large blood and lymph vessels (relatively small in eq)
translate the network of ducts, the testicular network
rete testis
what produces testicular fluid
rete testis
Which interstitial endocrine cells begin to produce testosterone at puberty?
Leydig cells
What do Leydig cells produce?
testosterone and in some animals (su) estrogen too
Sertoli cells can be found where?
in convoluted seminiferous tubules
What cells provide structural support, and nourish spermatozoa?
Sertoli cells, also called sustentacular cells
3 functions of the epididymis
storage and maturation of sperm – final stage in the development of sperms in which the number of chromosomes is reduced
transport and concentration of sperm
produces fluid which becomes part of semen
testicular efferent ductules
ductuli efferentes testis
What is the epididymis surrounded by
a thick albugineous tunic
What main parts is the epididymis comprised of?
caput epididymidis
corpus epididymidis
cauda epididymidis
The head of the epididymis consists of?
the efferent ductules
The body of the epididymis consists of?
the coiled duct
The tail of the epididymis continues onward as?
the deferent duct
What is unique to the equine albugineous tunic?
it has a few smooth muscle cells
the space between the body of the epididymis and the testis is called?
bursa testicularis
tail of the epididymis is attached to the caudal extremity of the testicle by?
the proper ligament of the testicle / lig. testis proprium
how is the epididymis secured to the vaginal covering?
by the ligament of the tail of the epididymis
lig. caudae epididymidis
What secures the epididymis to the scrotum?
the scrotal ligament / lig. scroti
testicular ligaments are remnants of?
gubernaculum testis / the guide of the testicle
superficial inguinal ring
inguinal canal
deep inguinal ring
anulus inguinalis superficialis
canalis inguinalis
anulus inguinalis profundus
What is the prostatic utricle
Uterus masculinus
(persistent Mullerian duct) is a vestigial embryological remnant of the paramesonephric duct system in males
the ampulla of the deferent duct
ampulla ductus deferentis
ejaculatory duct
ductus ejaculatorius
in Ru and eq the deferent duct is joined by?
the duct of the vesicular gland and together become the common short passage called ejaculatory duct
ejaculatory duct opens on?
the seminal hillock