GA - Urology and Andrology

Question 1

What is the unirary trigone?

Answer 1

Urinary trigone is a somewhat imaginary triangle formed from three points

The 2 Ureteric Orifices (openings where the ureters secrete urine into the bladder) and the opening of the urethra

Question 2

What are the ureteric orifices?

Answer 2

Ureteric orifices are the two openings where the ureters secrete urine into the bladder

Question 3

What do you call the flap of tissue over the opening of the urethra?

Answer 3

the Uvula of the Unrinary Bladder

Question 4

What are the parts of the urinary bladder?

Answer 4

Apex - most anterior portion

Fundus - Posterior/superior portion

Neck - area around the urethral opening - contains a sphincter composed of smooth muscle***

Body - everything else

Question 5

What is the name of the muscle that encompasses the walls of the urinary bladder?

Answer 5

The Detrusor M.

Question 6

What is the tissue found surrounding the detrusor M.? and what is it composed of?

Answer 6

Vessicle fascia

Which is composed of Visceral Membranous Pelvic Fascia

Question 7

What are the names of the various segments of the male urethra?

Answer 7

Preprostatic Urethra - short segment in the neck of the bladder before the urethra passes through the prostate gland

Prostatic Urethra - segment that passes through the prostate gland

Membranous Urethra - short segment of the urethra after it exits the prostate gland and before it enters the penis

Spongy Urethra - (aka Penile Urethra) segment of the urethra that passes through the penis all the way to the tip

Question 8

What do you call the swelling of urethral tissue in the prostate gland and what do you call its contents?

Answer 8

Urethral crest and it contains the Seminal Colliculus

Question 9

What are the significant structures of the Seminal colliculus?

Answer 9

There are three large holes

• The largest is the Prostatic Utricle (it has a blind end and has no function)
• The other two holes are paired, and they are the Openings for the Ejaculatory Ducts

Additionally, there is a space on either side of the Seminal colliculus called the Prostatic Sinus where the prostatic secretions enter the urethra

The tiny pores that the prostatic secretions travel through are called the Openings for the Prostatic Ductules

Question 10

What do you call the portion of the urethra where the lumen is wider in the spongy tissue, and what is significant about it?

Answer 10

Intrabulbar Fossa

It is located in the bulb of the penis

It is where the Bulbourethral Glands add their secretions to the urethra

Question 11

What is the portion of the urethra where the lumen is wider at the tip of the penis called?

Answer 11

The Navicular Fossa

Question 12

What do you call the visible line down the middle of the male genitalia?

Answer 12

Penile Raphe

Scrotal Raphe

Pernieal Raphe

Question 13

What are the contents of the spermatic cord?

Answer 13

• Ductus Deferens
• Teticular A.
• Cremasteric A.
• Artery to the Ductus Deferens
• Lymph Vessels
• Pampiniform Venous Plexus
• Ilioinguinal N.
• Genital Branch of the Genitofemoral N.
• Autonomic Sensory N.

Question 14

What are the tissue layers of the scrotum, spermatic cord, and testicle and what are they derived from?

Answer 14

Scortum:

• Skin
• Dartos M. and Dartos Fascia (Membranous superifical fascia; aka scarpa’s fascia)

Spermatic Cord:

• External Spermatic Fascia (external oblique aponeurosis)
• Cremaster Fascia and Cremaster Muscle (internal oblique apoenruosis)
• Internal Spermatic Fascia (Trasnversalis Fascia)
• Parietal layer of Tunica Vaginalis
• Visceral Layer of Tunica Vaginalis
• Tunica Albuginea

Question 15

What are the significant structures found within the testicle?

Answer 15

Seminiferous Tubules

Straight Tubules

Rete Testis

Question 16

What are tubes that connect the Rete Testis to the epididymis? Also, which segment of the epididymis does not communicate with the Rete testis via these tubules?

Answer 16

Efferent Ductules

The Taile of the Epididymis does not communicate with the Rete testis via the Efferent Ductules

Question 17

What are the significant tissue layers found in the penis?

Answer 17

Skin

Membranous Superficial Fascia (aka Scarpa’s Fascia)

Deep Fascia of the Penis (aka Buck’s Fascia)

Question 18

What are the segments of the Penis?

Answer 18

Root of the Penis

Body of the Penis

Glans Penis

Question 19

What are the segments of the glans penis?

Answer 19

Corona of the Glans Penis

Neck of the Glans Penis
where the glans penis meets the corpus spongiosum

Question 20

What do you call the skin that covers the glans penis?

Answer 20

Prepuce (aka the foreskin)

Question 21

What is the piece of skin on the ventral most surface between the glans penis and the prepuse?

Answer 21

Frenulum of the Penis

Question 22

What arteries run through the center of each of the Copora Cavernosa?

Answer 22

Deep Arteries of the Penis

Question 23

What are the paired glands found inferior and posterior to the urinary bladder

Answer 23

Seminal Vesicles

Question 24

What are the ejaculatory ducts?

Answer 24

The paired tubes that secrete seminal fluid into the urethra.

The Ejaculatory ducts are the result of the merging of the ducts from the Seminal Vesicles and the ducts from the Ductus Deferens.

Question 25

What are distinct features of the Bulbourethral Glands?

Answer 25

Bulbourethral glands secrete a serous fluid into the Intrabulbous Fossa (NOT the Seminal Colliculus)

Unlike the prostate gland, and ductus deferens, the bulbourethral glands do not drain their secretions into the urethra upon ejaculation. Rather they release their secretions upon arousal.