《直腸肛管》ppt課件-全文預(yù)覽
【正文】 and relations ? The rectum lies in front of the sacrum and coccyx. It begins at the pelvic surface of the 3rd sacral vertebra as the continuation of the sigmoid colon. Running downwards, it pierces the pelvic diaphragm to end as the anus. It is approximately 12~16cm in length. The part of the rectum superior to the pelvic diaphragm is the pelvic part and below this diaphragm is the
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鄂ICP備17016276號-1