Anatomy and Histology of Male Pelvis

Question 1

The pelvic cavity is lined by..?

Answer 1

A peritoneum

Question 2

What is the embryonic derivative of the Bladder?

Answer 2

Allantois

Question 3

What is the Allantois

Answer 3

The embryonic derivative of the Bladder

Question 4

What is the Cloaca?

Answer 4

A posterior orifice that serves as the only opening for the digestive, reproductive, and urinary tracts

Question 5

In mammals, the Cloaca undergoes septation to form…? How is this different in birds?

Answer 5

• Urogenital sinus
• Rectum

In birds, there is no septation

Question 6

The mesonephric duct is also known as..?

Answer 6

Wolffian duct

Question 7

The paramesonephric duct is also known as..?

Answer 7

Mullerian duct

Question 8

The “third kidney” is also known as..?

Answer 8

Mesonephros

Question 9

During development, the embryonic gonads are initially located at the Mesonephros. What happens then in males?

Answer 9

For males, they descend through the inguinal canal. The paramesonephric duct disintegrates. The mesonephric duct then develops into the Epididymis and Ductus Deferens

Question 10

The Epididymis and Ductus Deferens are derived from…?

Answer 10

Mesonephric duct

Question 11

The remnant of the Allantois is..?

Answer 11

Uraceus

Question 12

Which gland is located posterior to the Bladder?

Answer 12

Prostate gland

Question 13

What is the histology of the Prostatic Urethra region?

Answer 13

Transitional epithelium

Question 14

What is the histology of the Bulbar and Pendulus Urethra region?

Answer 14

Pseudostratified columnar epithelium

Question 15

What is the histology of the Glans Penis Urethra region?

Answer 15

Stratified squamous epithelium

Question 16

What are the muscles forming the roof of the Perineum?

Answer 16

Pelvic diaphragm

Levator Ani muscles (Puborectalis, Pubococcygeus, Iliococcygeous) + Coccygeus

Question 17

Where is the Perineal membrane attached, onto the pelvis? What aperture lies in the centre?

Answer 17

Attached from Ischial spine to Ischial spine, and has a single aperture for the Urethra (membraneous urethra)

Question 18

What main structure lies within the male deep perineal pouch?

Answer 18

Bulbourethral glands

Question 19

What structure lies between the Pelvic diaphragm and Perineal membrane?

Answer 19

Ischio-anal fossa

Question 20

What is equivalent to the male glans penis in females?

Answer 20

Glans clitoris

Question 21

The corpus cavernosus is covered by which muscle..?

Answer 21

Ischiocavernosus

Question 22

The corpus spongiosus is covered by which muscle..?

Answer 22

Bulbospongiosus

Question 23

The pudendal nerve is comprised of spinal nerves from..?

Answer 23

S2-S4