Introduction to the Reproductive System Flashcards
Gamete
Haploid cell
Male gamete
Spermatozoa
Female gamete
0ocyte or ovum
Pelvic cavity
Lies within the bony pelvis, between the pelvic inlet and the pelvic outlet, continuous with abdominal cavity
Pelvic floor
Internal wall of skeletal muscle that separates the pelvic cavity and the perineum
Perineum
Inferior to pelvic floor, situated between the proximal parts of lower limbs
Pelvic roof
Formed by parietal peritoneum (lining of the abdominal cavity)
Peritoneal cavity
Space between visceral and parietal caurity
Rectouterine pouch (of Douglas)
Double folding of the peritoneum between the rectum and the posterior wall of the uterus. Most interior part of the peritone al cavity in an upright female patient
Utero-vesicle pouch
Double folding of the peritoneum between the anterior surface of the uterus and the bladder
Female reproductive organs
Ovaries
Accessory reproductive organs - uterine tubes, uterus, vagina
Layers of uterusa walls
Perimetrium
Myometrium
Endometrium
Ovulation & menstruation
- Ova released from ovaries into peritoneal cavity
- Ovum gathered by fimbriae into infundibulum of uterine tube
- Ovum moved along uterine tube by cilia until it reachers the uterus
- During menstruation, an unfertilised ovum is expelled by contractions of the myometrium
Fertilisation usually occurs in…
The ampulla
Implantation usually occurs in…
The body of the uterus
Ectopic pregnancy
Fertilised ovum implants outside of the uterine cavity
Male reproductive organs
Testes
Accessory reproductive organs - vas deferens, prostate gland, penis
What happens during erection?
3 cylinders of erectile tissue become filled with blood at arterial pressure
Retrovesical pouch
Double folding of the peritoneum located between the rectum and the bladder
Development of the testes
During development the testis originate on the posterior wall of the abdominal cavity
By birth they have descended into the scrotum through the anterior abdominal wall
Where are spermatozoa produced?
In the seminiferous tubules
Sperm pass…
To rete testis, then into head of epididymis
Epididymis becomes vas deferens
Spermatic cord contains:
Vas deferens
Testicular artery
pampiniform plexus of veins