Embryology Of The Reproductive Sysye

Question 1

The cloaca

Answer 1

Gives rise to the anal posteriorly and the the urogernital sinus anteriorl

Question 2

The urogenital ridge

Answer 2

It formed due to the condensation of the intermediate mesoderm

The urogenital ridge gives rise to the gonads the ducts

Question 3

Urogenital sinus

Answer 3

The mesornephric ducts and the paramesornephric duct they drain into the urogenital sinus
apart from that the urogenital sinus is an anterior division of the cloaca
The urogenital sinus also give rise to the external genitalia

Question 4

The SRY GENES

Answer 4

The SRY GENES they are expressed on the Y chromosome apart from that they lead to the expression of the testis determining factor

Question 5

Testis

Answer 5

They formed when the primordial germ cells infiltrates the the Gonards
Apart from that the testis is made up of the seminiferous tubes and the retta testis
It also gives rise the leydig cells and the Sertoli cells

Question 6

Leydig cells

Answer 6

The produce testosterone

Question 7

Testosterone

Answer 7

It is produced by the leydig cell
It stimulates the mesornephlic to continue growing

Question 8

Mesonephlic ducts

Answer 8

It gives rise to the males ductal system
The epididymis
The vas deference
Seminal versicles
The common ejaculatory ducts