Pelvis and Perineum Session 4

Question 1

Name the 2 triangles the perineum divided into

Answer 1

Anterior urogenital triangle

Posterior anal triangle

Question 2

Which bony prominences separate each of the triangles

Answer 2

Ischial tuberosities

Question 3

What is the main action of the external anal sphincter

Answer 3

Constricts anal canal

Question 4

What is the main action of the superficial transverse perineal

Answer 4

Support and fix perineal body

Question 5

What is the main action of the deep transverse perineal

Answer 5

Support and fix perineal body

Question 6

What is the function of the external urethral sphincter

Answer 6

Compress urethra to maintain urinary continence

Question 7

What is the function of the Bulbospongious in males

Answer 7

Compress bulb of penis to expel last drops of urine and semen

Question 8

What is the function of the Bulbospongiosus in female

Answer 8

Assists in erection of clitoris

Question 9

What is the function of Ischiocavernous in males

Answer 9

Maintains erection of penis by compressing outflow veins

Question 10

What is the function of the ischiocavernous in females

Answer 10

Maintains erection of clitoris by compressing outflow veins and pushing blood from root of clitoris into body

Question 11

What strutures pierce through the pelvic diaphragm

Answer 11

Urethra

Vagina (female)

Question 12

Describe the parts of the urethra in males

Answer 12

Prostatic
Membranous
Spongey

Question 13

What is the widest part of the urethra

Answer 13

Prostatic

Question 14

What is the narrowest part of the urethra

Answer 14

Membranous

Question 15

The corpus cavernous is covered by a fascial layer called the ____

Answer 15

External fascia of Colles

Question 16

The urethra is transmitted through the____

Answer 16

Corpus spongiosum

Question 17

The majority of the erectile tissue in the penis is in the ___

Answer 17

corpus cavernous

Question 18

Where is the internal/vesical urethral sphincter located?

Answer 18

the internal urethral orifice in the trigone of the bladder to the external urethral orifice in the middle of the vulva

Question 19

Is the internal/vesical urethral sphincter voluntary or involuntary

Answer 19

Involuntary smooth muscle

Question 20

What is the innervation of the internal/vesical urethral sphincter

Answer 20

T11-L2 (Autonomic)

S2-S4 (parasympathetic)

Question 21

Where is the external urethral sphincter found in females

Answer 21

Located distally and inferiorly to the bladder neck in women between the vaginal orifice and clitoris

Question 22

Where is the external urethral sphincter found in males

Answer 22

Inferior to the prostate

Question 23

Is the external urethral sphincter voluntary or involuntary

Answer 23

Voluntary skeletal muscle

Question 24

What is the innervation of the external urethral sphincter

Answer 24

Pudendal nerve S2-S4

Question 25

Name the 6 contents of the vulva

Answer 25

Mons pubis
Labia majora
Labia minora 
Vestibule
Bartholins gland
Clitoris

Question 26

The structures of the vulva are innervated by which nerve

Answer 26

Pudendal nerve

Question 27

What artery supplies the structures of the vulva

Answer 27

Internal pudendal artery

Question 28

What 2 structures does the vestibule contain

Answer 28

Terminal aspects of the vagina and urethra

Question 29

What is the anal triangle

Answer 29

Area between the ischial spines and coccyx

Question 30

What structures do the pudendal nerve, artery and veins supply

Answer 30

Bulb of penis
Bulb of vestibule
Greater vestibular gland