The interior of the anal canal and lower part of the rectum, showing the anal columns and the anal valves between their lower ends (the columns were more numerous in the specimen than usual)
Details
Identifiers
Latin
sinus anales
TA98
A05.7.05.006
TA2
3013
FMA
76584
Anatomical terminology
[edit on Wikidata]
An anal sinus (rectal sinus) is a furrow formed between any two adjacent anal columns of the anal canal. An anal sinus is limited inferiorly by an anal valve (which unites the inferior ends of a pair of adjacent anal columns). The anal glands open into the anal sinuses.[1]
^Sinnatamby, Chummy S. (2011). Last's Anatomy (12th ed.). p. 315. ISBN 978-0-7295-3752-0.
unites the inferior ends of a pair of adjacent anal columns). The anal glands open into the analsinuses. Sinnatamby, Chummy S. (2011). Last's Anatomy...
the anal canal and lower part of the rectum Median sagittal section of male pelvis Median sagittal section of female pelvis Anal columns Analsinuses Anal...
base under the pituitary gland Analsinuses, the furrows which separate the columns in the rectum Dural venous sinuses, venous channels found between...
is followed by the anal canal, which is about 4 centimetres (1.6 in) long, before the gastrointestinal tract terminates at the anal verge. The word rectum...
conditions, including cancer (see anal cancer). With anal sex, the anus can play a role in sexuality. Attitudes toward anal sex vary, and it is illegal in...
anal sphincter is far more substantial than the internal anal sphincter. The proximal portion of external anal sphincter overlaps the internal anal sphincter...
The internal anal sphincter, IAS, or sphincter ani internus is a ring of smooth muscle that surrounds about 2.5–4.0 cm of the anal canal. It is about...
The pyriform sinus (also piriform recess, piriform sinus, piriform fossa, or smuggler's fossa) is a small recess on either side of the laryngeal inlet...
the anal canal. An anal valve forms the inferior boundary of an analsinus. The anal valves demarcate the level of the pectinate line. Sinnatamby, Chummy...
(osculum) for excretion, comb jellies have both a ventral mouth and dorsal anal pores, while cnidarians and acoels have a single pore for both digestion...
line) is a line which divides the upper two-thirds and lower third of the anal canal. Developmentally, this line represents the hindgut-proctodeum junction...
ileocecal valve to the anus; it comprises the cecum, colon, rectum, and anal canal "The Large Intestine". VideoHelp.com. "What Are the Functions of the...
the small and large intestine. The large intestine includes the rectum and anal canal. Partially digested food starts to arrive in the small intestine as...
as the combination of the cecum, colon, rectum, and anal canal. Some other sources exclude the anal canal. In humans, the large intestine begins in the...
hyoid bone. The laryngopharynx includes three major sites: the pyriform sinus, postcricoid area, and the posterior pharyngeal wall. Like the oropharynx...
column-shaped, and squamous if flat. In the oesophagus, pharynx and external anal canal the epithelium is stratified, squamous and non-keratinising, for protective...
Anal columns (Columns of Morgagni or less commonly Morgagni's columns) are a number of vertical folds, produced by an infolding of the mucous membrane...
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