Anus

Frae Wikipedia
Lowp tae: navigation, rake
Anus
Protovsdeuterostomes.svg
Formation o anus in proto- an deuterostomes
Details
Precursor Proctodeum
System Alimentary, sometimes reproductive
Artery Inferior rectal artery
Vein Inferior rectal vein
Nerve Inferior rectal nerves
Lymph Superficial inguinal lymph nodes
Identifiers
Laitin Anus
TA A05.7.05.013
FMA FMA:15711
Anatomical terminology

The anus (frae Laitin anus, meanin 'ring, anus', which is frae Proto-Indo-European *h₁eh₂no-, meanin "ring") is an openin at the opposite end o an ainimal's digestive tract frae the mooth. Its function is tae control the expulsion o faeces, unwantit semi-solit matter produced during digestion.