Pelvis, Pelvic Diaphragm, Uterus, Ovaries and Vagina Flashcards
What are the parts of the Pelvic Inlet?
- Sacral Promontary
- Sacral Ala
- Arcuate Lines
- Pectineal Line
- Pubic Crest
What are the parts of the Pelvic Outlet?
- Ischiopubic Ramus
- Ischial Tuberosity
- Sacrotuberous Ligament
- Coccyx
What is considered False Pelvis?
Anything between the level of the Anterior Superior Iliac Spine and the Pelvic Inlet
What is considered True Pelvis?
Anything between the Pelvic Inlet and the Pelvic Diaphragm?
What is the Perineum?
Diamond-Shaped area from the Pelvic Diaphragm to the Skin and Fascia
What are the borders of Perineum?
Roof: Pelvic Diaphragm Floor: Skin and Fascia Anterior: Pubic Symphysis Posterior: Tip of the Coccyx Lateral: Inferior Pubic Rami, Inferior Ischial Rami, Sacrotuberous Ligament
What kind of joint is the Sacroiliac Joint?
Synovial Joint but it may fibres or ossify
What kind of Joint is the Pubic Symphysis?
Secondary Cartilaginous Joint
What are the Sacroiliac Ligaments?
- Anterior
- Interosseus
- Posterior
What are the Anatomical Diameters of the Pelvic Inlet?
- Conjugate Diameter
2. Transverse Diameter
Where is the Conjugate Diameter of the Pelvic Inlet?
From the Sacral Promantary to the Pubic Symphysis
What are the Obstetric Measurements of the Pelvic Inlet?
- Sagittal Inlet
- Sagittal Outlet
- Transverse Diameter
- Bispinous Outlet
Where is the Sagittal Inlet?
From S1 to the top of the Pubic Symphysis
Where is the Sagittal Outlet?
From the Coccyx tip to Pubic Symphysis
Where is the Bispinous Outlet?
Between the Ischial Spines
How do you tell if a Pelvic bone belongs to a Female?
- Pelvic Inlet is circular
- Pubic Arch is roughly a right angle
- The Ischial Spines are Straight
How do you tell if a Pelvic bone belongs to a male?
- the Pelvic inlet is heart-shaped–> because the Sacral Promontary is projecting more prominently
- Ischial Spines are more medially projecting
- Pubic Arch angle is very acute
What are the ligaments preventing the upward tilting of the sacrum?
- Sacrospinous Ligament
2. Sacrotuberous Ligament
What are the muscles of the Pelvic Diaphragm?
- Ischiococcygeus
- Iliococcygeus
- Pubococcygeus–> Puborectalis and Pubovaginalis/Puboprostaticus