Pelvis & Pelvic Viscera Learning Objectives Flashcards
Name the bony elements of the pelvic girdle
L., basin
Innominate x 2
Sacrum
Coccyx
Name the structures that form the boundaries of the pelvic inlet (brim)
divides pelvis into greater (false) and lesser (true)
- Sacral promontory
- Arcuate line
- Pectineal line
- Pubic symphysis
Name the structures that form the boundaries of the pelvic outlet
- Coccyx
- Sacrotuberous ligament
- Sacrospinous ligament
- Ischial tuberosities
- Pubic arch
Describe the divisions of the pelvis
Abdominal cavity
Greater pelvis (false): superior to pelvic brim
Lesser pelvis (true): inferior to pelvic brim, superior to pelvic outlet
Name the pelvic joints and ligaments that cross them
Anterior/posterior sacroiliac ligaments
- Sacrum to innominate; stabilizer
Sacrospinous ligament
- Sacrum to ischial spine
Sacrotuberous ligament
- Sacrum to ischial tuberosity
Anterior longitudinal ligament
- Spans the anterior aspect of lumbar spine/sacrum
Iliolumbar ligament
- Ilium to TP of 5th lumbar vertebrae
List the ways the male and female pelvis differ from one another
Subpubic angle is primary identifier
- Male
o subpubic angle: 70 deg
o Heart-shaped inlet
o Narrow outlet
o Narrow cavity
o Narrow, convex sacrum - Female
o subpubic angle: 90-100 deg
o Oval-shaped inlet
o Roomy outlet
o Roomy cavity
o Wide, flat sacrum
Describe the basic structure of the pelvic viscera
???
Terminal parts of digestive and urinary systems
Describe the structure and course of the ductus (vas) deferens
Conveys sperm to ejaculatory duct
- Travels through inguinal canal
- Superior to ureter
- Posterior to urinary bladder
- Merges with seminal glands to form ejaculatory ducts within prostate
Describe the location of the prostate
Inferior to urinary bladder
Surrounds prostatic urethra
Contributes alkaline fluid
Describe the location of the bulbourethral glands
Inferior to prostate
Within perineal membrane
Contributes lubricating secretions into spongy urethra
Name the four parts of the male urethra
*Preprostatic
Prostatic part
Membranous part
Spongy part
Describe the basic structure of the female internal reproductive organs: OVARIES
Ligaments:
- ovarian
- suspensory
Peritoneal folds:
- mesovarium
- mesosalpinx
- mesometrium
composed of dense fibrous tissue in which ova are produced and discharged from follicles (ovulation)
Ovarian vessels (in ovarian suspensory ligament)
Mesovarium
Surrounds ovarian and suspensory ligaments, ovarian vessels
Mesosalpinx
Surrounds uterine tubes
Mesometrium
surrounds uterine vessels