Male Reproductive System Flashcards
where does spermatogenesis occur
Seminiferous tubule (in the epithelium)
where does sperm drain immediately after production
Rete
what duct wraps around the testicles
and describe the passage of sperm through it
epididymis
head to body to tail (then to deferent duct)
what duct joins to the epididymis
deferent (spermatic)
which cells secrete testosterone
Leydig cells
what is the function of Sertoli cells?
control the environment within seminiferous tubules and support them
name the fascia surrounding the testes
Tunica Albuginea
what is the double layered peritoneum ontop of the testes
tunica vaginalis and tunica albuginea
where do the testes pass to move from the abdomen to the scrotum
inguinal cavity
how do testes move through the inguinal cavity
pulled by the gubernaculum ligament
name some issues if the testes remain in the abdomen
tortion
neoplasia due to high temperature
what issue may the potential space between the layered peritoneum in the testes create
an inguinal hernia
what is the venous plexus in the testes called
pampiniform plexus
what vascularises the testes
testicular artery - branch of the abdominal aorta
how may the testes be kept cool
venous exchange in the pampiform plexus - veins wrap around artery to cool blood as it enters the testes
sweat glands
being outside the body
how are testes kept warm
cremaster muscle contracts to pull testes close to the body
Dartos muscle reduces exposed surface
what is the spermatic cord
collection of arteries, veins, nerves, lymph vessels, deferent duct, peritoneum
what is the function of Spermatic fascia
binds elements of the spermatic duct together
where is the cremaster muscle
alongside the spermatic fascia
what accessory gland lies at the end of the deferent duct
Ampulla
what accessory gland lies near the opening of the deferent duct
Vesicular
what accessory gland is composed of the body and disseminate part
prostate
what accessory gland lies near the urethra exit
bulbourethral
which animals have an ampulla duct
ruminants, horses, dogs
which animals have a vesicular
ruminants, horses, pigs
which domestic animal doesn’t have a bulbourethral duct
dogs
what is the function of the prepuce
prevent the penis from trauma and drying
where does the penis originate
the ischial arch
what is the corpus cavernosum
tissue within the penis main body
what tissue runs along the corpus cavernosum and surrounds the urethra
corpus spongiosum
what type of penis do dogs have, and how does it function
musculocavernous
erection due to large volumes of blood in corpus cavernosum and spongiosum
what type of penis do ruminants and pigs have, and how do they function
fibroelastic
elongate by the relaxation of the retractor penis muscle, causing the sigmoid flexure to straighten
what is a penis bone called
Baculum
what is the copulatory lock
2nd stage of copulation in dogs, male and female stand back to back, glan swells before ejaculation, cannot be separated.
which muscle is responsible for the expulsion of urethral contents
bulbospongiosus
which muscle blocks venous return from corpus cavernosum
ischiocavernosi
what vascularises the penis
branches of the internal pudendal artery
what innervates the penis
pudendal nerve
pelvic nerve
hypogastric nerve
