Week 1: Reproductive Embryology Flashcards
Reproductive system derived from?
Intermediate mesoderm
The urinary system derived from?
the urinary and reproductive systems develop from intermediate mesoderm
What is the urinary portion of the intermediate mesoderm?
Explain how the reproductive system develops
Describe embryology by week 6
Describe development of the gonads and other internal reproductive organs
Describe accessory glands development
Identify development of the male accessory glands
Describe development of the female accessory glands
Identify uterine and vaginal anomalies
Describe the development of the external genitalia
Describe the indifferent stage of each embryo during development of the external genitalia
At the indifferent stage each embryo has
- Genital tubercle
- Urogenital folds
- Labioscrotal swellings
- Anal folds
Describe development of the female external genitalia
In the female
- Genital tubercle becomes the clitoris
- Urogenital folds form the labia minora
- Labioscrotal swellings form the labia majora
Describe the development of male external genitalia
In the male:
- Urogenital folds fuse and genital tubercle elongates to become the shaft and glans of the penis
- Urogenital (urethral) fold fusion forms the penile urethra
- Distal urethra forms from canalization of urethral endoderm extending into the glans
- Labioscrotal swellings fuse to form the scrotum
Describe hypospadias
Describe Epispadias
Describe the descent of the gonads
What is cryptorchidism?
When the testes fail to descend
Cryptorchidism treatment
surgical correction by Orchipexy
Developmental anomalies associated with the processus vaginalis
- Cryptorchidism
- Testicular torsion
- Testicular hydrocele
- Indirect (congenital) hernia
What is testicular torsion?
twisting of the spermatic cord that crimps the testicular artery
What is testicular hydrocele?
Fluid betweem the parietal and visceral layers of the tunica vaginalis
What is an Indirect (congenital) hernia
Causes of indirect inguinal hernias?
Causes of direct inguinal hernias?
Diagram of testicular hydrocele
Diagram of indirect inguinal hernia
More testicular issues
Describe descension of the ovaries
