Metanephros

Lower Urinary Tract

Early Genitourinary System

Male Reproductive System

Female Reproductive System

 

 

Organ Summary - Male Reproductive System

Tubercle

Male Reproductive System

genital tubercle of male

(TS20-24)

 

The development of the external genitalia

A genital tubercle is first apparent at about TS19 (11.5 dpc) while the two genital folds (later to form the labial folds in females and the scrotal folds in males) are first noted at about TS17-18 (10.5-11 dpc). The genital folds later fuse rostrally in the region of the genital tubercle. In the male, the scrotal folds also fuse across the ventral midline at about TS22 (14 dpc) to form the scrotal folds (or scrotal sac), while in the female these do not fuse across the ventral midline. (moreā€¦)

 

Tubercle (Theiler Stage 21) image 1  

 

Tubercle (Theiler Stage 21) image 2