Introduction to reproductive system Flashcards
testes function
Produce sperm and secrete hormones
Ductal system function
Transport and store sperm, assist in maturation and deliver sperm and semen into female reproductive tract
Structures in ductal system
Epididymis, ductus deferens, ejaculatory ducts, penis, urethra
Function of spermatic cord
Supporting system for male reproductive system - ductus deferent, testicular artery and vein, autonomic nerves
Accessory sex glands in males
Seminal vesicles/glands (secrete seminal fluid), prostate (homologous to paraurethral glands in female), bulbourethral (Cowper’s) glands (homologous to greater vestibular glands in female)
What does scrotum do?
Support testes
Conditions male reproductive system
- Hydrocele of scrotum
- Scrotal hernia
- Spermatogenesis
- Testicular torsion
- Undescended testis
- Vasectomy for sterilization
- Infertility
- Impotence - erectile malfunctions
- Congenital malformations
- Spread of infections
Function of ovaries
Produce gametes and secrete hormones
Function of uterine tubules/oviducts
Conduit for transport of sperm and oocytes for fertilisation
Function of uterus
Pathway for transport of sperm and site of implantation of ovum
Function of peritoneal folds/;ligaments
Supports ovaries, uterine tube and uterus
Function of vagina
Receptacle for penis during intercourse, outlet for blood and passageway for childbirth
What is ecxternal genitalia made of?
Mons pubis, labia majora, labia minora, clitoris, vestibule (between labia minora)
Accessory sex glands in female
- Paraurethral glands (homologous to prostate)
- Greater vestibular of Bartholin’s glands (homologous to bulbourethral glands in males)
- Bulb of vestibule (homologous to corpus spongiosum and bulb of penis in males)
Clinical issues in female reproductive system
- Oogenesis
- Ovarian cyst or tumour
- Tubal ligation for sterilisation
- Tubal block in infertility
- Uterine prolapse
- Hysterectomy
- Congenital malformations
- Spread of infections
Development of reproductive system
- Shares common structural origin with urinary system
- Genetic and structural sex determination
- Hormonal influence
Which two germ layers is the reproductive system derived from?
Mesoderm and endoderm
What is the mesoderm germ layer divided into?
Paraxial, intermediate and lateral plate
Mesonephric system
Intermediate mesodermal germ layer structure
Contributes to renal tubules, ureter, reproductive system, uterine canal and vagina
What is the cloaca?
Part of distal embryonic handgun - endodermal germ layer
What are the indifferent gonads?
Located in posterior abdominal walls
Forms longitudinal urogenital ridges with mesonephros
Primitive sex cords
When do gonads acquire sexual characteristics?
Week 6/7