Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
24 Cards in this Set
- Front
- Back
|
What vessels provide the blood required for an erection?
|
Dorsal arteries of the penis
|
|
|
What tissue does the dorsal arteries of the penis engorge?
|
Spongy corpora cavernosa
|
|
|
For engorgement, what must relax?
|
The smooth muscle of the corpora
|
|
|
What causes blood to pool in erectile tissues?
|
Outflowing veins are compressed by the tunica albuginea, closing them
|
|
|
Dysfunction of what may interfere with engorgement of the corpus cavernosum and produce impotence?
|
Autonomic nerves
|
|
|
Why is the male urethra susceptible to rupture?
|
Due to the change in direction between the membranous and penile urethra
|
|
|
Where can the urethra be ruptured if the pelvis is fractured?
|
U-G diaphragm
|
|
|
What is the result of a rupture of either the membranous or penile urethra?
|
Extraversion of urine into the superficial perineal pouch
|
|
|
With a urethral rupture in which the Buck's fascia is intact, where will the urine be located?
|
In the U-G diaphragm between the perineal membrane and deep fascial layer
|
|
|
If there is a urethral rupture and Buck's Fascia is **NOT** intact, where will the urine go?
|
Goes into the superficial perineal pouch which can extend to perineum, scrotum and into the lower abdomen
limited by Scarpa's and Colle's Fascia |
|
|
Why will urine NOT go into the thigh with a ruptured urethra?
|
Fusion of Scarpa's fascia with the fascia lata inferior to the inguinal lig
|
|
|
What is the most common symptom of an enlarged prostate and why does it happen?
|
Difficulty in micturition
Due to a narrowed prostatic urethra |
|
|
A Trans-Urethral Resection (TURP) uses a flexible device to open up a narrowed urethra due to an enlarged benign prostate. What does this do to the ejaculatory ducts?
|
It chops and blocks the openings of the ejaculatory ducts
|
|
|
In males, what does the genital tubercle elongate into?
|
phallus, which pulls the urethral folds together to form the penile urethra
|
|
|
What do the urethral swellings form?
|
They expand and fuse midline to form the scrotum
|
|
|
What does the inferior portion of the urogenital sinus develop into?
|
differentiate into the prostatic and membranous urethra
|
|
|
What does the prostatic urethra merge with and what does this merge form?
|
Joins the ejaculatory ducts to create the urinary/genital continuum
|
|
|
What do the primitive sex cords develop into?
|
Proliferate and penetrate into the medulla to become the testis cords
|
|
|
When the cords break distally, what do they become?
|
Rete testis and seminiferous tubules
|
|
|
When the connection between the sex cords and surface epithelium is lost, an intervening layer will differentiate into what?
|
Tunica albuginea
|
|
|
The mesonephric duct develops into what in the male?
|
Efferent Ductules
Epididymis Ductus Deferens Seminal Vesicle Ejaculatory duct |
|
|
What happens to the paramesonephric duct in the male?
|
It disappears
|
|
|
What is the dorsum of the penis?
|
It is the top portion of the penis (closest to stomach)
You name the penis according to its erect position |
|
|
Parasympathetic axons supply the bladder and allow engorgement. What are these levels of nerves?
|
S2,3,4... keep the penis off the floor
|
