Perineum Flashcards
what is inferior to the pelvic floor ceiling
pelvic diaphragm
what makes up the pelvic diaphragm (2)
leavor ani and coccygeus
what is the peripheral boundary inferior to the pelvic floor
pelvic outlet
what makes up the pelvic outlet (6)
pubic symphysis, ischiopubic rami, ischial tuberosity, sacrotuberous ligament, sacrum, coccyx
what is the inferior to the pelvic floor divided into (2)
urogenital and anal triangles
are the urogenital and anal triangles in the same plane
no
what demarcates the line between urogenital and anal triangles
ischial tuberosity
what is located inferior to the pelvic floor (3)
external openings of genitourinary tracts, external openings of GI tract, external genitalia attachment
what supplies inferior to the pelvic floor (2)
pudendal nerve and internal pudendal artery
what is located in the urogenital triangle (4)
external genitalia roots, urethral opening, vaginal opening, fibromuscular support
what fibromuscular support is located in the urogenital triangle (2)
perineal membrane and deep perineal pouch
what is located in the anal triangle (2)
anus and internal anal sphincter
what is located in the centre of the division between the triangles
centre point of the perineum
what is the perineal membrane (3)
tough fibrous fascia, erectile body attachment, external genitalia attachment
perineal body appearance (6)
irregular, variable, fibromuscular, collagen, elastin, smooth and skeletal muscle
what is located on the anterior inferior aspect of the pelvic outlet
inferior pubic ligament
what are the 3 external anal sphincters
deep, superificial, subcutaneous
which anal sphincter is voluntary
external
perineal body function (2)
associates with perineum and muscle attachment
which muscles attach to the perineal body (4)
levator ani, external anal sphincter, superficial transverse perineal muscle, bulbospongiosus
what muscle lines the anterior rim of the pelvic outlet
ischiocavernosus
perineal fascia deep to superficial (2)
deep perineal pouch and perineal membrane