Urogenital Triangle

Question 1

What are the boundaries of the urogenital triangle?

Answer 1

The base is formed by the imaginary line between the ischial tuberosities and the apex is formed by the pubic synthesis

Question 2

What structure is found in the urogenital triangle that allows the passage of the urethra?

Answer 2

Urogenital diaphragm

Question 3

What fascia attaches to the posterior border of the urogenital diaphragm?

Answer 3

Scarpa’s

Question 4

List some functions of the the urogenital diaphragm

Answer 4

• Closes off the space between the pubic bones
• Prevents prolapse
• Provides attachment for structures of the superficial perineal pouch

Question 5

Which layer of fascia of the urogenital diaphragm blends with the perineal body and membrane?

Answer 5

Superior

Question 6

Which layer of fascia of the urogenital diaphragm contains the sphincter urethrae that controls urinations and the deep transverse perineal muscles?

Answer 6

Middle

Question 7

What is the name of the layer of fascia between the perineal membrane and the skin

Answer 7

Superficial perineal patch

Question 8

Which layer of the urogenital diaphragm is the deep perineal pouch?

Answer 8

The middle layer

Question 9

In what layer of the urogenital diaphragm is the vagina?

Answer 9

The deep perineal pouch

Question 10

In what layer of the urogenital diaphragm is the small glands associated with the vagina found?

Answer 10

Superficial perineal pouch

Question 11

What structures are found in the deep perineal pouch?

Answer 11

• Urethra
• Sphincter urethrae
• Deep transverse perineal muscles
• Internal pudendal vessels and branches

Question 12

What nerve innervates the deep perineal pouch?

Answer 12

Pudendal nerve

Question 13

What structures are found only in the female deep perineal pouch?

Answer 13

• Vagina

- Dorsal nerves of clitoris

Question 14

What structures are found only in the male deep perineal pouch?

Answer 14

• Membranous urethra
• Dorsal nerves of the penis
• Bulbourethral glands
• Penile arteries

Question 15

Which pouch of the urogenital diaphragm lies between the perineal membrane and the skin?

Answer 15

Superficial perineal pouch

Question 16

What pouch of the urogenital diaphragm contains both the male and female reproductive organs?

Answer 16

Superifical peroneal pouch

Question 17

What muscles are found in the superficial perineal pouch?

Answer 17

• Ischiocavernosus
• Bulbospongiosum
• Superficial transverse perineal

Question 18

What are the muscles of the superficial pouch supplied by?

Answer 18

Perineal branches of the pudendal nerve

Question 19

What is the man function of the muscles of the superficial perineal pouch?

Answer 19

To overlie the erectile tissue of both sexes and maintain erection of the tissues by contracting to imped venous return, keeping the blood in the erectile tissue

Question 20

What is the main function of the ischiocavernosus muscle?

Answer 20

To help maintain erection of the penis and clitoris during stimulation

Question 21

What nerve and artery supply the ischiocavernosus muscle?

Answer 21

Perineal artery ad nerve

Question 22

What is the main function of the bulbiospongiosum in males and females?

Answer 22

• In males it facilitates urination, ejaculation and erection
• In females it contributes to the erection of the clitoris and emptying the greater vestibular glands

Question 23

What nerve and artery supply the bulbiospongiosum muscle?

Answer 23

Perineal nerve and artery

Question 24

What is the function of the superficial transverse perineal muscles?

Answer 24

To support the edge of the urogenital diaphragm

Question 25

What part of the urogenital diaphragm provides attachment for the small muscles of the superficial perineal pouch?

Answer 25

The perineal body

Question 26

What structure is the site of attachment for the anal sphincter

Answer 26

The perineal body

Question 27

What structure is the attachment site for bulbospongiosus and the superficial transverse perineal muscles?

Answer 27

The perineal body

Question 28

What is the crura?

Answer 28

- In males it is a structure that continues into the penis as the corpora cavernosa - In females it forms the body of the clitoris

Question 29

What does the bulb of the penis continues as?

Answer 29

Corpus spongiosum which forms the glands penis

Question 30

What is the name of the structure in females that surround the opening of the vagina and forms the glands of the clitoris?

Answer 30

Bulb of vestibule

Question 31

What are the blocks of erectile tissue in the penis?

Answer 31

- Corpus spongiosum | - Corpus cevernosum

Question 32

What block of erectile tissue in the penis does the urethra lie within?

Answer 32

Corpus spongiosum

Question 33

What artery and nerve supply the penis?

Answer 33

Pudendal artery and nerve

Question 34

Where does innervation to the erectile tissue of the penis come from?

Answer 34

Autonomic nerves

Question 35

What are the 4 parts of the male urethra?

Answer 35

- Pre-prostatic - Prostatic - Membranous - Penile

Question 36

Where is the pre-prostatic part of the male urethra found?

Answer 36

Between the trigone and the prostate gland

Question 37

Where is the membranous part of the male urethra found?

Answer 37

Passing between the urogenital diaphragm

Question 38

Where does the ejaculatory duct join the urethra?

Answer 38

At the prostatic part

Question 39

What nerve provides sensory innervation innervation to the penis and scrotum?

Answer 39

Pudendal nerve

Question 40

How does the pudendal nerve reach the structures of the anal and urogenital structures?

Answer 40

Passes through the greater sciatic notch , around the ischial spine and then through the lesser sciatic notch to descend branches

Question 41

The clitoris is composed of erectile tissue derived from what structures?

Answer 41

The crura and bulb of vestibule

Question 42

What artery and nerve supply the clitoris?

Answer 42

Pudendal artery and nerve