Anatomy and Histology of Male Pelvis Flashcards
The pelvic cavity is lined by..?
A peritoneum
What is the embryonic derivative of the Bladder?
Allantois
What is the Allantois
The embryonic derivative of the Bladder
What is the Cloaca?
A posterior orifice that serves as the only opening for the digestive, reproductive, and urinary tracts
In mammals, the Cloaca undergoes septation to form…? How is this different in birds?
- Urogenital sinus
- Rectum
In birds, there is no septation
The mesonephric duct is also known as..?
Wolffian duct
The paramesonephric duct is also known as..?
Mullerian duct
The “third kidney” is also known as..?
Mesonephros
During development, the embryonic gonads are initially located at the Mesonephros. What happens then in males?
For males, they descend through the inguinal canal. The paramesonephric duct disintegrates. The mesonephric duct then develops into the Epididymis and Ductus Deferens
The Epididymis and Ductus Deferens are derived from…?
Mesonephric duct
The remnant of the Allantois is..?
Uraceus
Which gland is located posterior to the Bladder?
Prostate gland
What is the histology of the Prostatic Urethra region?
Transitional epithelium
What is the histology of the Bulbar and Pendulus Urethra region?
Pseudostratified columnar epithelium
What is the histology of the Glans Penis Urethra region?
Stratified squamous epithelium
What are the muscles forming the roof of the Perineum?
Pelvic diaphragm
Levator Ani muscles (Puborectalis, Pubococcygeus, Iliococcygeous) + Coccygeus
Where is the Perineal membrane attached, onto the pelvis? What aperture lies in the centre?
Attached from Ischial spine to Ischial spine, and has a single aperture for the Urethra (membraneous urethra)
What main structure lies within the male deep perineal pouch?
Bulbourethral glands
What structure lies between the Pelvic diaphragm and Perineal membrane?
Ischio-anal fossa
What is equivalent to the male glans penis in females?
Glans clitoris
The corpus cavernosus is covered by which muscle..?
Ischiocavernosus
The corpus spongiosus is covered by which muscle..?
Bulbospongiosus
The pudendal nerve is comprised of spinal nerves from..?
S2-S4
