Pelvis Flashcards
Function Obturator Internus
- Lateral rotation of Extended Hip
- Abduction of flexed hip
Function Piriformis
- Lateral rotation of extended hip
- Abduction of Flexed hip
Function levator Ani
- Formaion of pelvic floor
- Supports viscera
- Reinforce external sphincter
- Vaginal sphincter
Function Coccygeus
- Forms pelvic floor; supports organs
- Pulls coccyx forward after defecation
Function external urethral sphincter
Compress Membranous urethra
Function Compressor urethrae and Sphincter urethrovaginalis (Women only)
CU: Accessory sphincter of urethra
SUV: Accessory Sphincter of urethra and vaginal closing
Function ischiocavernosus
Move blood From curry into body of erect penis and clitoris
Bulbospongioosus function
- Move blood from parts of clitoris and penis into glands
- In men: Removal of residual urine; Pulsatile emission of semimembranous during ejaculation
Function superficial transverse perineal
Stabilize perineal body
Function of Iliopsoas
- Hip Flexion
- External rotation of Hip
- Ipsilateral sidebending
Function of P-GOGO
- Laterally rotate extended femur
- Abducts flexed femur
Function: Gracilis Pectineus AddMag AddBrev AddLong
- Adducts thigh
- Medially rotates thigh
What are true ligaments of the pelvis?
Accessory ligaments?
True:
- Anterior Sacroiliac
- Posterior Sacroiliac
- Interosseus Sacroiliac
Accessory:
- Sacrotuberous
- Sacrospinous
- Inguinal
Function Iliolumbar ligament
- Stablilze anterior motion and rotation L5
Function Sacrspinous ligament
- Prevent Anterior rotation of sacrum
Function Sacrotuberous
- Prevent anterior oration of sacrum
How is fasciae continuity observed in hamstring hyper tonicity?
Hamstring Hypertonicity causes
ipsilateral innominate rotation
posteriorly and can confound
flexion testing
Describe Gender differences in Pelvis
Gynecoid (AP = transverse) —> Female
Android (HEart shaped) - Male mostly
Anthropoid (AP>Transverse) —> 23% Females
Platypelloid (Transveres>AP) —> Rarely males, 2% females
How does suprapubic angel differ in females?
Wider angle (80-85 as compared to 50-60 in males)
What is relaxin?
- Member of insulin-like GF family of proteins
- Act indirectly to promot myometrial relaxation —> Prostacyclin
