Rugae
The trigone is a triangular area in the bladder where the ureters and urethra connect. It is located in the base of the bladder and is made up of smooth muscle that does not expand like the rest of the bladder. The trigone helps maintain the shape and support the function of the bladder.
Rugae are actually folds in the mucosa of the stomach and urinary bladder, not the kidney. Rugae in the stomach help with its expansion when it is full, while rugae in the bladder allow for stretching as it fills with urine.
When the bladder is empty it's lining is thrown into folds called rugae. It allows the stomach and other tissues to expand when needed.
Gastric folds are found in the interior of the stomach. They are also know as gastric rugae.The main importance of gastric folds is to increase the stomach's surface area and allow it to expand.
The purpose is to allow the stomach to expand.
These types of folds are called rugae, in the stomach they are the gastric rugae
Folds in the mucous membrane, known as rugae, are found in certain parts of the body like the stomach and bladder. These folds allow the organs to expand and contract, aiding in their respective functions such as digestion and urine storage. Rugae help increase the surface area of the mucous membrane, allowing for greater absorption or distension.
Overeating would cause it to expand more than it normally does. The stomach is a muscular pouch that has folds in it called rugae. It can be as small as a fist or as large as a gallon (4 liters).
The folds of the mucosa on the internal surface of the stomach are called rugae. Rugae allow the stomach to expand when it is filled with food and contract when it is empty. This helps in mixing and breaking down food during digestion.
Vocal cords
Folds or wrinkles called Rugae allow the stomach to expand by unwrinkling
The lining of the stomach is made up of folds called rugae, which allow the stomach to expand and contract as it digests food. These rugae give the lining a slightly rough texture.