The anus only refers to the anal opening. There is a sphincter that keeps the anus closed. The canal is the rectum, a tube-like structure that holds feces or bowel movements until a person visits the bathroom.
The anal canal
The anal canal has a ring of muscle, called the anal sphincter
anal canal
The anal canal serves to transmit and lubricate stool as it passes externally from the rectum
The rectum, the final portion of the large intestine, becomes the anal canal.
An anoscopy is an examination using a small, rigid instrument called an anoscope, which is inserted into the anal canal.
Anoscopy is the visual examination of the anal canal and lower rectum.Anoscopyits actually proctoscopy
Assholicus Maximus & Buttockical Minimus
anal canal
The function of the anal canal is to transmit and lubricate stool as it bypasses externally from the rectum.
Approximately half of anal cancers are squamous cell carcinomas, which arise from the cells lining the anal margin and the anal canal.
Rectum.