The anal valves are small valve-like folds at the lower ends of the
anal sinuses
The anal sinuses (rectal sinuses) are furrows in the anal canal, that separate the anal columns from one another. The anal sinuses end below in small valve
A valve is a device or natural object that regulates, directs or controls the flow o ...
in the
rectum
The rectum is the final straight portion of the large intestine in humans and some other mammals, and the gut in others. The adult human rectum is about long, and begins at the rectosigmoid junction (the end of the sigmoid colon) at the l ...
. The anal valves join the lower ends of the
anal columns
Anal may refer to:
Related to the anus
*Related to the anus of animals:
** Anal fin, in fish anatomy
** Anal vein, in insect anatomy
** Anal scale, in reptile anatomy
*Related to the human anus:
** Anal sex, a type of sexual activity involving s ...
. The anal sinuses are located between them. The valves and sinuses form the
pectinate line
The pectinate line (dentate line) is a line which divides the upper two-thirds and lower third of the anal canal. Developmentally, this line represents the hindgut-proctodeum
A proctodeum is the back ectodermal part of an alimentary canal. It ...
.
See also
*
Anal canal
The anal canal is the part that connects the rectum to the anus, located below the level of the pelvic diaphragm. It is located within the anal triangle of the perineum, between the right and left ischioanal fossa. As the final functional segme ...
References
External links
* — "The Female Pelvis: The Rectum"
Digestive system
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