Page 668 - First Aid for the USMLE Step 1 2020, Thirtieth edition [MedicalBooksVN.com]_Neat
P. 668
624 SectioN iii RepRoductive ` REPRODUCTIVE—ANATOmy RepRoductive ` REPRODUCTIVE—ANATOmy
Congenital penile abnormalities
Hypospadias Abnormal opening of penile urethra on ventral Hypospadias is more common than
surface of penis due to failure of urethral folds epispadias. Associated with inguinal hernia,
to fuse. cryptorchidism, chordee (downward or upward
bending of penis).
Hypo is below.
Can be seen in 5α-reductase deficiency.
Epispadias Abnormal opening of penile urethra on dorsal Exstrophy of the bladder is associated with
surface of penis due to faulty positioning of Epispadias.
genital tubercle. When you have Epispadias, you hit your Eye
when you pEE.
Descent of testes and ovaries
DESCRIPTION mAlE REmNANT FEmAlE REmNANT
Gubernaculum Band of fibrous tissue Anchors testes within scrotum Ovarian ligament + round
ligament of uterus
Processus vaginalis Evagination of peritoneum Forms tunica vaginalis Obliterated
Persistent patent processus
vaginalis hydrocele
` REPRODUCTIVE—ANATOmy
Gonadal drainage
Venous drainage Left ovary/testis left gonadal vein left renal “Left gonadal vein takes the Longest way.”
vein IVC.
Right ovary/testis right gonadal vein IVC. IVC
Because the left spermatic vein enters the left
renal vein at a 90° angle, flow is less laminar
on left than on right left venous pressure
> right venous pressure varicocele more
common on the left. Left renal vein
Lymphatic drainage Ovaries/testes para-aortic lymph nodes. Gonadal veins
Body of uterus/cervix/superior part of bladder
external iliac nodes.
Prostate/cervix/corpus cavernosum/proximal
vagina internal iliac nodes.
Distal vagina/vulva/scrotum/distal anus
superficial inguinal nodes. Pampiniform
Glans penis deep inguinal nodes. plexus
FAS1_2019_15-Repro.indd 624 11/7/19 5:52 PM
