Class 3 - Station 1 Flashcards
two triangles of the perineum
urogenital and anal
location of urogenital triangle
mid perineum to pubic symphysis
location anal triangle
mid perineum to coccyx
what is the thing sheet of fascia which stretches from one side of the pubic arch to the other underneath the pubic symphysis
perineal membrane
two openings in the perineal membrae
vaginal (only in females) and urethral
muscles of the perineum
external anal sphincter, superficial transverse perineal muscle, bulbospongiosus and ischiocavernosus
which perineal muscle surround the vaginal oopening
bulbocavernosus
attachments of superficial transverse perineal muscles
ischiopubic rami to perineal body
general innervation of perineum
pudendal nerve (S2-4)
general blood supply of perineum
internal iliac –> internal pudendal artery
central point fo attachment for all perineal muscles but the isciocavernosus
perineal body
location of ischiocavernosus
in females: along the pubic rami at the top, there’s 2
in males: along the sides of the penus
bulbospongiosus in males
runs from perineal body up the body of the penis
in which perineal space is the external urethral sphincter
deep perineal space
perineal space inferior to deep perineal space and its boundaries
superficial perineal space, transerverse perineal muscles and the subcut tissue
