Reproductive Organs / booty

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  1. Ovaries
    each ovary lies on the lateral wall of the pelvis posterior and inferior to the uterine tube and suspended from the back of the broad ligament by the mesovarium.
  2. Suspensory ligament of the ovary
    contains the ovarian vessels and nerves
  3. ligament of the ovary
    fibromuscular cord that attaches the ovary to the angle between uterus and uterine tube
  4. Uterine tube
    lies in the upper part of the broad ligament surrounded by the mesosalpinx. Runs laterally and backward from the uterus to the side of the pelvis and here curves medially over the ovary.
  5. Fimbriae and infundibulum
    funnel the ovum into the ampulla where it is fertilized by the waiting sperm.
  6. Where does developing embryo travel?
    Developing embryo then travels through the isthmus of the tube and into the cavity of the uterus where it implants
  7. What happens to ovarian follicle during ovulation
    the ovarian follicle with its mature ovum ruptures through the surface of the ovary and enters the uterine tube.
  8. Uterus location
    lies between the bladder and rectum, separated by the vesicouterine and rectouterine pouches.
  9. Rectouterine folds
    contain the uteroscaral ligaments that anchor the uterus to the front of the sacrum
  10. Uterus features
    hollow, thick walled, muscular organ about he size and shape of an inverted pear
  11. Body and fundus of uterus
    • form the upper 5 cm
    • fundus is the rounded part that tlies above the entrance to the tubes
  12. Cervix
    cylindrical and narrow, forms lower 3 cm. Projects into the upper end of the vagina
  13. endometrium
    • mucosa that lines the uterine cavity.
    • undergoes cyclical changes each month.
  14. myometrium
    1 cm thick wall consists of smooth muscle
  15. broad ligament
    • consists of 2 layers of peritoneum that stretch from the side of the uterus to the side wall of the pelvis.
    • Between the 2 layers is loose fatty and areolar tissue and the uterine vessels and nerves
  16. round ligament of the uterus
    fibromuscular cord that curves forward from the angle between uterus and tube across the pelvic brim and passes through the deep inguinal ring. It traverses the inguinal canal, emerges through the superficial inguinal ring and blends with the areolar tissue in the labium majus
  17. Vagina details
    • 9-10 cm long collapsed fibromuscular tube.
    • pubovaginalis and bulbospongiosus are vaginal sphincters.
  18. Walls of vagina
    • Anterior wall is in contact with the bladder and urethra.
    • Posterior wall contacts the rectum
  19. Cervix details
    projects into the upper end of the vagina which which forms a circular gutter around the cervix termed the anterior, posterior and lateral fornices
  20. Testicles
    lies in the scrotum invaginated into the posterior wall of a closed peritoneal sac, the tunica vaginalis
  21. epididymis
    a highly coilded tube attached posteriolaterally to the testis
  22. Seminiferous tubules
    hair-like, sperm is produce here.
  23. Sperm movement
    produced in seminiferous tubules of testis. Pass through 15-20 efferent ductules in the head of the epididymis. Then pass into the body and then tail of epididymis that becomes continuous with the ductus deferens
  24. Temperature of testes
    controlled by contraction and relaxation of the cremaster and dartos muscles
  25. Dectus deferens
    becomes part of the spermatic cord and ascends through the superficial inguinal ring. inguinal canal and deep inguinal ring to enter the pelvis
  26. Ductus deferens expands into?
    into the ampulla at the back of the bladder.
  27. Lateral to each ampulla
    convoluted seminal vesicle
  28. Ejaculatory ducts
    ampulla and duct of the seminal vesicle join to form the ejaculatory duct. It passes through the back of the prostate to empty into the urethra.
  29. Prostate
    • firm, fibromuscular glad lying just below the neck of the bladder, surrounding the urethra and sitting on the urogenital diaphragm.
    • Secretions of the prostate and seminal vesicles form most of the seminal fluid (semen)
  30. Rectum
    follows the curvature of the sacrum down and forwards to the anorectal junction
  31. Anorectal junction
    where the rectum passes through the pelvic diaphragm and becomes the anal canal which passes down and back to the anus
  32. perineal flexure
    backward bend, maintained by the puborectalis
  33. internal anal sphincter
    a thickening of the circular smooth muscle layer of the gut
  34. Internal sphincter innervation
    innervated by the inhibitory parasympathetic fibers from the pelvic splanchnic nerves (S2-4) and excitatory sympathetic fibers from the prevertebral ganglia.
  35. external anal sphincter
    skeletal muscle arranged in subcutaneous, superficial, and deep parts
  36. external anal sphincter innervation
    innervated by the pudendal nerve (S2-4)
  37. Blood supply for pelvis and perineum
    supplied by the internal ilia artery and its branches
  38. blood supply for rectum and upper half of anal canal
    superior rectal branch of the inferior mesenteric artery
  39. gonad blood supply
    by the testicular and ovarian branches of the abdominal aorta
  40. Internal iliac artery supplies
    viscera and walls of pelvis, perineum, gluteal region and medial compartment of the thigh.
  41. superior and inferior vesical arteries
    bladder and adjacent structures
  42. middle rectal artery
    • lower rectum
    • anal canal, adjacent structures
  43. iliolumbar and lateral sacral arteries
    pelvic walls
  44. internal pudendal artery
    leaves the pelvis through the greater sciatic foramen, runs between the sacrospinous and sacrotuberous ligaments and enters the perineum through the lesser sciatic foramen. Runs in the pudendal canal (located in the obturator internus fascia. Branches include inferior rectal, perineal and dorsal artery of the penis or clitoris.
  45. superior and inferior gluteal arteries
    gluteal region
  46. obturator artery
    medial compartment of the thigh
  47. inferior hypogastric (pelvic) plexuses
    smooth muscles and glands of the pelvis and perineum are innervated by sympathetic and parasympathetic fibers
  48. Sympathetic provided by
    preganglionic cells from T10-L2
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Reproductive Organs / booty
2012-01-16 23:38:03
Pelvis Penis Reproductive organs

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