Anatomy and physiology of the rectum and anus.
Anorectal physiology is complex and involves the interaction of multiple mechanisms. Advances in physiological testing have led to a great deal of research, which has increased our knowledge of normal and disordered physiology, and modified our therapeutic approach. As a consequence, many concepts in anatomy have been revised. We have reviewed aspects of the anatomy and physiology of the rectum and anus together with the applications of the new concepts.
Jorge
J M
JM
Department of Colorectal Surgery, Cleveland Clinic Florida, Fort Lauderdale, 33309, USA.
Wexner
S D
SD
D001003:Anal Canal / Q000033:anatomy & histology / Q000502:physiology; D006801:Humans; D012007:Rectum / Q000033:anatomy & histology* / Q000502:physiology*