Muscles and walls of the pelvic cavity Flashcards
Which muscles make up the lateral wall of the pelvic cavity ?
Piriformis Obturator internus
What muscles make up the posterior wall of the pelvic cavity?
Levator ani muscles Coccygeus
Levator ani muscles?
Puborectalis Pubococcygeus Iliococcygeus
what are the functions of the pelvic floor
• Supports the viscere and stops them from being pushed through pelvis • Prevents urinary/fecal incontinence • Resistance to increase the intra-abdominal pressure
what is the pelvic floor also known as?
Pelvic diaphragm
Innervation of the pelvic floor
-S2-S4= Levator ani muscles -S4-S5= Coccygeus
Perineal and anococcygeal bodies function?
• Irregular fibromuscular mass • At junction of the urogenital and anal triangles • It acts as a point of attachment for muscle fibres from the pelvic floor and the perineum
What is a cystocele and rectocele?
Cystocele: Prolapsed bladder Rectocele: Prolapsed Rectum
Main pelvic viscera of the urinary system?
Ureters Urinary bladder Urethra
Main reproductive system viscera in males and females?
Males: -prostate -seminal glands -ductus deferens -ejaculatory duct Females: -Vagina -Uterus -Ovaries -Fallopian tubes
The levator ani muscles
Where are the bulbocavernosum and the ischiocavernosum muscles?
- Exterior to the levator ani
- Just underneath the labia majora
Perineal bodiesn