Pelvis And Perineum Anatomy Flashcards
What is the pubis symphysis
Where the two pubic bones meet in the midline , almost no movement is permitted
Shock absorption during walking and childbirth
What bones is the pelvis made up from
Ilium
Ischium
Pubis
Where and what is the asis
Anterior superior iliac spine
Most anterior portion of ilium
What does the ischium form
Posteroinferior part of the hipbone
What is the ischium composed of
Body inferior and superior ramus
Where is the sacrum
Terminal part of the vertebral canal
5 articulations of the bony pelvis
Hip joint Sacroiliac joint Pubic symphysis Lumbosacral joint Sacrococcygeal joint
Function of pelvic floor muscles
Prevent herniation of pelvic organs inferiorly
Control continence of urine and faeces
Aid in increasing intra abdom pressure
muscles of the pelvic floor
Levator ani
Coccygeus
Three smaller muscles of Levator ani
Puborectalis
Pubociccygeus
Iliococcygeus
What is pelvic perineum
Superficial region between pubic symphysis and the coccyx
Vasculature , Innervation of perineum
Internal pudendal artery
Pudendal nerve
Layers of urogenital triangle
Skin Perineal fascia Superficial perineal fascia Perineal membrane Deep perineal pouch
what is the perineum
diamond shaped structure in pelvis
vital role in defecation, sex, micturition and birth
anatomical borders of perineum
anterior - pubic symphysis
posterior - tip of coccyx
lateral- inferior pubic rami
roof - pelvic floor
