Introduction to Repro Anat Flashcards
(41 cards)
What is the true pelvis and false pelvis
Pelvis minor and pelvis major
What type of joint is the sacroiliac joint
Synovial
What type of joint is the pubic symphysis
Secondary cartilaginous
Male vs female pelvis: Pelvis major
Male: Narrower
Female: Wider
Male vs female pelvis: Pelvis minor
Male: Narrower and deeper
Female: Wider and shallower
Male vs female pelvis: Pelvic inlet (shape)
Male: Heart shape
Female: Oval
Male vs female pelvis: Pelvic outlet
Male: Narrow
Female: Wide
Male vs female pelvis: Subpubic angle
Male: Acute
Female: Obtuse
Male vs female pelvis: Obturator foramen
Male: Round
Female: Oval
Male vs female pelvis: Acetabulum
Male: Larger
Female: Smaller
Narrowest diameter of the pelvic inlet
Obstetric conjugate
Widest diameter of pelvic inlet
Diagonal conjugate
What muscle forms the posterior wall of the pelvis?
Piriformis
What nerve network lies on the piriformis?
Sacral Plexus
What is the perineal body?
A fibromuscular node found in the midline of the perineum
What is the anococcygeal body?
Layered musculotendinous intersection of the two haves of levator ani muscles.
Functions of the pelvic floor (2)
- Support the abdomino-pelvic organs
2. Resist intra-abdominal pressure
What 2 muscles make up the pelvic floor
- Coccygeus
2. Levator ani: pubococcygeus, iliococcygeus, puborectalis
Innervation of the pelvic floor and what origin
Pudendal. S2-S4
What is a 1) cystocele and 2) rectocele
1) anterior vaginal prolapse where bladder has prolapsed
2) posterior vaginal prolapse where rectum has prolapsed
What are the consequences of pelvic floor injury?
Urinary or bowel incontinence, pelvic organ prolapse, sexual dysfunction, pelvic pain
Why perform an episiotomy?
To minimise extensive tears to the vagina
Why mediolateral episiotomy instead of midline?
To prevent damage to the perineal body, which can cause urinary and faecal incontinence
What structures can be palpated on DRE? Male and female
Male: prostate, rectal walls
Female: cervix, rectal walls