Repro: Male And Female Flashcards
Where is the pelvic floor?
Pelvic outlet
If a structure needs to go from the pelvic cavity to the perineal region, where does it pass through?
Out the greater sciatic notch and back in through the lesser sciatic notch
What is the false pelvis bound by?
Posteriorly: lumbar vertebrae
Laterally: iliac fossae and iliacus muscle
Anteriorly: pubic arch
What is the pelvic outlet bound by?
Posteriorly: coccyx
Laterally: ischial tuberosities
Anteriorly: pubic arch
What connects the bottom part of the sacrum to the coccyx?
Sacrotuberous ligament
What are the three notches in the pelvis?
Pubic arch, sciatic tuberosities
What do ligaments divide the sciatic notches into?
Greater and lesser sciatic foramina
What is the shape of the pelvic inlet in males?
Heart shaped
What is the shape of the pelvic inlet in females?
Oval
What is the angle of the pubic arch in males?
50-60
What is the angle of the pubic arch in females?
80-85
If a structure wants to pass to the lower limb, where does it exit the pelvis?
Through the obturator foramen
What is a raphe?
Thick fibrous structure running from the bottom of the vertebral column forwards
Where do the levator ani muscles attach?
Posterior pubis
Linea thickening over the obturator internus
Spine of ischium
What are the two levator ani muscles subdivided into?
Pubococcygeus and iliococcygeus
Where does the pubococcygeus run?
Pubis to coccyx
Where does the iliococcygeus run?
Ileum to coccyx
Where does the coccygeus muscle attach?
Sacrospinous ligament and ischial spine
What are the functions of the pelvic floor?
Supports the pelvic viscera
Separates the pelvic cavity and the perineum
Why is the pelvic floor incomplete anteriorly?
To allow the passage of the urethra and vagina
What forms the pelvic diaphragm?
Levator ani, coccyges and their fascial coverings
What is the perineal body?
Fibromuscular mass of tissue that lies between the rectum and vagina
What is the function of the perineal body?
Continence, maintaining the position of structures in the perineum and muscles attach to it
What can damage to the perineal body cause?
Prolapse of the uterus and vagina or rectal prolapse
When may the perineal body become damaged?
Childbirth
Where is the anococcygeal muscle attached?
Base of the coccyx
What muscle attaches to the anococcygeal body?
Iliococcygeus muscle
What is the pubovaginalis muscle called in males?
Levator prostatae
Where does the sacrospinous ligament attach?
Sacrum and ischeal spine
Where does the sacrotuberous ligament attach?
Sacrum and ischeal tuberosity
What does the external iliac artery pass under when it becomes the femoral artery?
Inguinal ligament
Where does the internal iliac artery bifocate?
At the superior border of the greater sciatic foramen