Perienum Q and A 2020 Flashcards


What is the perineum?
Region of external genitalia. Below pelvic diaphragm
What is the obstetricians perienum
Area between vagina and anus around perineal body
What is the urogenital tringle?
limited superiorly by perineal membrane covering UG diaphragm on inferior surface


What is the superficial perineal pouch?
Potential space between the membranous layer of the superficial perineal fascia (Colles’ fascia) and the perineal membrane (= inferior urogenital fascia).


1.What forms the lower limit of the superficial perineal space (pouch)?
1.Superficial perineal fascia (Colles’
fascia)
1.What forms the lower limit of the deep perineal space (pouch)?
2.Perineal membrane (inf. fascia of UG diaphragm)
1.Where would urine extravasate (leak) to if the the membranous urethra were damaged in a male?
2.Superficial perineal space



Perineal membrane

1.Identify the pairs of muscles seen in the superficial perineal space
What is their innervation
Innervated by pudneal nerve



What is the urogenital diaphragm pierced by?
The perineal nerve (branch of pudendal) from pelvis into superficial perineal space






Which pelvic bony structure is palpated before administering a pudendal nerve block?
Ischial spine






What are the different parts of the male urethra?
Prostatic
Intermediate
Spongy or penile
What is the narrowest part of the male urethra?
Membranous part


