Pelvis Flashcards
What does the pelvic girdle consist of?
Consists of the left & right hip bone
- Ilium
- Ischium
- Pubis
What does the pelvic diaphragm/ pelvic floor consist of?
- Levator ani
- Coccygeus
What do the superficial transverse perineal muscles support?
Central tendon of the perineum
What do the bulbospongiosus & ischiocavernosus maintain?
Erection in the penis or clitoris
What does the deep transverse perineal support?
1) central tendon of the perineum
2) external anal sphincter
What forms the pelvic wall?
- obturator internus
- piriformis
- sacrotuberous ligament
- sacrospinous ligament
- tendinous arch
What does the greater sciatic notch hold?
The piriformis muscle
What is the posterior-most muscle of the pelvic floor?
Coccygeus
Mention the 4 parts of the levator ani muscle
- Levator prostatae/ vaginalis
- puborectalis
- pubococcygeus
- iliococcygeus
Obturator internus and piriformis are both?
Lateral rotators of the hip joint
The head of the femur joint meets with the pelvis at the ………., forming the hip joint
Acetabulum
Boundaries of the perineum
- symphysis pubis
- coccyx
- ischial tuberosity
- sacrotuberous ligament
- ischiopubic ramus
Urogenital triangle muscles
- ischiocavernosus M
- bulbospongiosus M
- superior transverse perineal M
- urogenital diaphragm
What forms the anal triangle?
- Levator ani
- external sphincter ani
- anococcygeal ligament
What is the perineal body composed of?
Fibromuacular tissue