It is a straight tube laying centrally in the pelvis starting from the sigmoid colon and ending in the anal canal which open externally
In male rectum lies behind the urinary bladder,prostate,and seminal vesicles. In female it lies behind the uterus and vagina. The mucus coat of rectum has transverse and longitudinal fold. The lower portion of the rectum dilated and called rectal ampulla.
Rectum gets filled up focal material from the colon. Once the intra-rectum pressure reaches 40-45 mmHg the reflexes get stimulated and the faeces pass through the anus ( defecation ).
Anus : The rectum ends in the anus which is a small canal guarded by two sphincters. The internal sphincter is involuntary and the external sphincter is voluntary. It gives stretch sensation and dilates during defecation and then it again contracts
It is a straight tube laying centrally in the pelvis starting from the sigmoid colon and ending in the anal canal which open externally
In male rectum lies behind the urinary bladder,prostate,and seminal vesicles. In female it lies behind the uterus and vagina. The mucus coat of rectum has transverse and longitudinal fold. The lower portion of the rectum dilated and called rectal ampulla.
Rectum gets filled up focal material from the colon. Once the intra-rectum pressure reaches 40-45 mmHg the reflexes get stimulated and the faeces pass through the anus ( defecation ).
Anus : The rectum ends in the anus which is a small canal guarded by two sphincters. The internal sphincter is involuntary and the external sphincter is voluntary. It gives stretch sensation and dilates during defecation and then it again contracts