Male Reproductive Wk11 Flashcards
Identify the peritoneal reflections over the male
urogenital system
Anterior abdominal wall –> bladder –> rectum
Retrovesical
Lowest space behind the bladder - UG system can be accessed - reaches the prostate gland during surgery
What are the roles of the sphincters?
involuntary and voluntary sphincters control outflow
of bladder (gender differences)
Internal urethral sphinter is what kind of muscle?
Smooth
External Urethral sphincter is what muscle?
Skeletal
In the urethra what structures can we see?
Urethral crest and urethral sinuses, seminal colliculus –> ejaculatory duct openings
Semen and prostatic secretions empty into what?
Prostatic urethra
Transurethral resection is important surgical site why?
Transurethral resection now used to spare nerves
involved in micturition and erection
Benign prostatic hyperplasia
Enlarged prostate impacts the transitional zone of prostate
* Increased urinary frequency & urgency
* Difficult in the initiation of micturition
Compression of bladder and urethra
Anterolateral Abdominal Wall consists of what?
- Rectus Abdominus
- External oblique
- Internal oblique
- Transverse abdominus
Why is abdomen important for spermatic cord?
Gonads descend
through ant.
abdominal wall to
scrotum- site
of weakness in
ant abdominal
wall (herniation)
* deep & superficial
inguinal rings and
the inguinal canal
* when abdominal
mm. contract
pressure on
spermatic cord
Inguinal hernia
An inguinal hernia occurs when tissue, such as part of the intestine, protrudes through a weak spot in the abdominal muscles.
Scrotum
Pouch from ant abdominal wall
What muscles are important for teste function?
Cremaster and dartos mm.
What is the scrotum fascia?
- Tunica vaginalis
- Tunica albuginea
Tunica albuginea covers?
Seminiferous tubules and the testes
The penis has 3 cylinders of eretile tissue what are they?
- two corpora cavernosum - crus attached to pubic arch
- corpora spongiosum expands to form glans & transmits
urine and ejaculate
What is the function of the penis?
common outlet for urine & seminal fluid
Each cylinder of erectile tissue is surrounded by?
Semi-elastic sheath
What is the anatomical position for the penis?
in erectile position
What are the 2 arteries of the penis?
Dorsal and deep arteries
What Muscles in male perineum are important for penile function?
Fundiform (linea alba) & suspensory ligs (pubic symphysis) - used for support
Ischiocavernosus muscle does what?
Compress crus, helps maintain &
stabilize erection
Bulbospongiosus muscle helps with?
Helps empty urethra after urination, compress erectile tissue, contraction during ejaculation, helps expel semen
