ruga

1 In the absence of food, the stomach deflates inward, and its mucosa and submucosa fall into a large fold called a ruga.

2 When polio vaccination workers do visit their remote settlements, she says, they tend to visit only the first ruga they see and not look for others in the vicinity.

3 Once the liquid was in her mouth, they saw that it was held in ridges called rugae on the roof of the mouth before it continued down her throat.

4 On the summits of the rugae there are effusions of bloody matter, or spots of ecchymosis, presenting an appearance almost like crushed black currants.

5 The mucous membrane loses its rugae and presents a pale, grayish, blanched hue.

6 The simple columnar epithelium of the gallbladder mucosa is organized in rugae, similar to those of the stomach.

7 Finally, they spot a cluster of mud-brick huts, known to the Fulani nomads who live there as a ruga.

8 This view of the stomach shows the characteristic rugae.

1 皱

corrugated cor. ruck crinkle contract gather knot knit rugate ruckle draw crimple pucker

2 皱褶

wrinkle rumple wimple crimple ruffly plication ruckle goffer crease