Faecal Continence Flashcards
What does control of faeces excretion require
“holding area” (rectum)
Visceral afferent nerve fibres to sense ‘fullness’ of rectum
Functioning muscle sphincters
Normal cerebral function
What other factors can affect faecal incontinence
Medications
Natural age related nerve degeneration
Consistency of stool
Where is the rectum located
Pelvic cavity - must pass through the pelvic floor into the perineum
When’re does the sigmoid colon become the rectum
Anterior to S3
Recto-sigmoid junction
When does the rectum become the anal canal
anterior to the tip of the coccyx
Just prior to passing through the elevator ani muscle
What is the anus
End of the anal canal
Orifice through which faeces pass
The rectum, anus and anal canal are in the pelvis true/false
False
Rectum - pelvis
Anal canal and anus - perineum
Where is the rectal ampulla
Immediately superior to the elevator ani muscle
What is the role of the rectal ampulla
Muscles and muscle sphincters hold faces in the ampulla until theres an appropriate time to defecate
Where do the rectouterine/rectovesical pouches lie
Anterior to the superior rectum
Where does the vesicouterine pouch lie
Between the bladder and the uterus
What does the elevator ani muscle do
Forms most of the pelvic diaphragm together with fascial coverings
Made up of lots of smaller muscles
Forms roof of peritoneum
Skeletal muscle
