Salivary Glands PancreasEsophagus LiverGallbladder Ascending Colon
Ileum Rectum AppendixPancreasStomach Transverse ColonDescending Colon Cecum Parotid Gland Sublingual Gland
Submandibular Gland Coronary LigamentCystic Duct DuedonumFalciform Ligament Pons
Gallbladder Hepatic Duct Pancreatic Duct Common Bile Duct Parotid Gland Sublingual GlandSubmandibular Gland
As the Rugae are formed in form of ridges by folding of an organ, there are certain locations in human body where these Rugae appear, which are as follows.
- Wrinkles of Scrotum
- Hard Palate (Thin Horizontal bony plate of skull on the roof of mouth)
- Inside of Urinary Bladder
- Inside the stomach (Gastric Rugae)
These ridges or folds increase the elasticity, traction and spreading surface area of the organ walls which enable the organ to be in minimal space while having the capacity to Extend and Contract for functioning.
The common function of Rugae is to allow the Stomach or other tissues to spread when needed. When the stomach is empty Rugae form folds in the tissues. However when the stomach fills up it spread itself by unfolding the Rugae. Upon emptying the Rugae compels the stomach to decrease to its former size.