QuestionSBA
QuestionChoice
Incorrect - The urachus ultimately becomes the allantois, a fibrous cord, that passes from the bladder to the umbilicus. It is not associated with the development of the penis or reproductive system.
10008454
e
Urachus
QuestionChoice
Incorrect - the genital swellings form the scrotum in males and the labia in females.
10008451
b
Genital Swellings
QuestionChoice
Incorrect - The inguinal ligament is not associated with the development of the penis or reproductive system.
10008453
d
Inguinal Ligament
QuestionChoice
Incorrect - The genital tubercle forms the glans of the penis and erectile tissue in males and the clitoris in females.
10008452
c
Genital tubercle
QuestionChoice
Correct - The shaft of the penis originates from the urethral folds. Failure of their fusion can result in epispadias (where the urethral opening arises from the dorsal aspect of the penis) or hypospadias (where the urethral opening arises from the ventral aspect of the penis).
10008450
a
Urethral Folds
Concept
Chapter
2693
3871
Development of the male reproductive system
Topic
171
Embryology
14237
A 6-month-old baby boy is brought to the GP surgery by his mother. When changing the baby's nappy she has noticed that he does not seem to urinate out of the end of his penis. On examination, the GP identifies hypospadias.

Which of the following embryological tissue does the shaft of the penis originate from?
a