Male RS Flashcards
Male reproductive system includes
The primary sex organ
Secondary sex organs
Primary sex organ is
Testes
Secondary sex organs
Three transporting ducts (epididymis, vas deferens and ejaculatory duct )
Three groups of glands (2 seminal vesicles, prostate and 2 bulbourthral glands)
Penis and scrotum
Testis lies in the
scrotum outside the abdominal cavity because
production of sperms need low temperature
The …… testis is lower than the …… by one cm
left
Right
Testis is suspended to
to the pelvic cavity by the spermatic cord
The testis is covered by a capsule called
tunica albuginea
Septa is
Septa are sent from the tunica albuginea inside the testis dividing it into 200-300 lobules
Each lobule is filled with what
2 or 3 seminiferous tubules where sperm are
produced inside them
The ends of semineferous tubules collect to form
the rete testis
Efferent ductules arise from
rete testis & recollect forming the epididymis
Define Epididymis and length
It is a long, thin convoluted tube, measuring about 6 meters but severely coiled
Epididymis consists of
head (upper part), body (middle part) and tail (inferior part)
Epididymis lies on the
postero-lateral part of the testis
Epididymis ends by
being continuous with the vas deferens
Epididymis function
is the place for storage and maturation of sperm
Vas deferens length is
About 45 cm
vas deferens structure
It has very thick fibro-muscular wall and very narrow lumen.
ductus deferens begins at
the tail of the epididymis
in the scrotum
ductus deferens ends in
dilation called ampulla of Vas
ampulla of Vas unite with what
unite with the duct of the seminal vesicle forming the ejaculatory duct
Seminal vesicles lies on
the posterior surface of the urinary bladder
Seminal vesicle structure and length
It is sacculated cyst measuring about 4-5 cm long
Seminal vesicles secretes what
viscous fluid rich in Urinary bladder fructose, forming parts of the seminal fluid and nourishes the sperms.
Which part of the Seminal vesicle forms its ducts?
Lower end
Define Ejaculatory ducts and its structure
Short thick-walled duct that passes inside the prostate gland and terminates in the prostatic part of the urethra
What delivers sperm into the urethra
The ejaculatory duct
What peirces the prostatic urethra
Ejaculatory duct
Describe the Prostate shape and number
single gland pyramidal-shaped
The prostate lies below
the neck of the urinary bladder
The prostatic urethra passes through the
prostate
The prostatic urethra passes through
The prostate
The prostate’s primary function is to
to produce the fluid seminal that nourishes and transports sperm
The bulbo-urethral glands is also called
Cowper’s gland
The bulbo-urethral lies in the
How many there is
Two smaller glands lie below the prostate
The bulbo-urethral glands open by on
both sides of the beginning of the penile part of the urethra
The bulbo-urethral glands produces what
Produce fluid that empties directly into the urethra
The bulbo-urethral glands fluid function is to
lubricate the urethra and to neutralize any acidity that may be present due to residual drops of urine in
the urethra.
The bulbo-urethral glands produce what beside the fluid
mucus-like secretion enters the urethra during sexual arousal
The bulbo-urethral (cowper’s) glands produce 2 things what are they?
Fluid
mucus-like secretion
The scrotum is a
sac of skin
The scrotum is divided into
two parts by longitudinal septum
The scrotum hangs in or outside of the body?
outside the body
Why does the The scrotum hangs outside the body
because it needs to maintain a slightly lower temperature than the rest of the body
This lower temperature in the scrotum helps to
maintain sperm production
Scrotal tissues help what
protect the structures inside the testis where sperm and important hormones are produced
Penis is composed of 3 parts what are they
root, body and glans penis
The root and body consist of
three cylindrical masses of erectile tissue
There are two dorsal called …… and single
ventral ……
corpora cavernosa
corpus spongiosum
corpus spongiosum is
pierced by the penile (spongy) urethra.
The corpus spongiosum terminates distally
by enlarged part called the glans penis.
The urethra opens in the
Tip
