Surgical Anatomy of the Penis and Male Perineum

Question 1

name the parts of the urethra 1-6

name the most distal part of urethra

Answer 1

1. fossa navicularis; 2, pendulous or penile urethra; 3, bulbous urethra; 4, membranous urethra; 5, prostatic urethra; and 6, bladder neck

Most distal part: Meatus

Question 2

Distally, the skin of the penis is confluent with the __ skin
covering the glans. At the corona, it is folded on itself to form the ___ that overlies the glans. The ___, a layer of areolar tissue remarkable for its lack of fat, separates these two layers of skin and continues into the perineum, where it fuses with the layers of the ___ fascia. In the penis, the dartos fascia is loosely attached to the skin and the deeper layer of___ fascia and contains the ___ of the penis.

Answer 2

Distally, the skin of the penis is confluent with the glabrous skin
covering the glans. At the corona, it is folded on itself to form the foreskin (prepuce) that overlies the glans. The dartos fascia, a layer of areolar tissue remarkable for its lack of fat, separates these two layers of skin and continues into the perineum, where it fuses with the layers of the superficial perineal (Colles) fascia. In the penis, the dartos fascia is loosely attached to the skin and the deeper layer of Buck fascia and contains the superficial arteries, veins, and nerves of the penis.

Question 3

fossa navicularis is lined with what kind of epithelium

Answer 3

Stratified squamous epithelium

Question 4

penile urethra is lined with

Answer 4

SIMPLE SQUAMOUS

Question 5

is the portion that traverses the perineal pouch and is surrounded by the external urethral sphincter, lined with ____ epithelium

Answer 5

MEMBRANOUS urethra

transitional

Question 6

name the 5 urethral sphincters

Answer 6

1. bladder neck
2. prostatic muscular stroma
3. external smooth muscle sphincter.
4. The external rhabdosphincter is often referred to as the external sphincter.
5. In the area of the membranous urethra are the muscles of recruitment, which are not true sphincters but provide aid with volitional continence.

Question 7

blood supply to skin of penis

Answer 7

the left and right superficial external pudendal vessels