| A greater percentage of CL in early diestrus tend to have a fluid-filled lumen vs the CL during late diestrus and advanced stages of pregnancy. |
| The lower esophageal sphincter is tonically contracted at rest to seal the lumen in a rosette at the esophagogastric junction. |
| This contraction wrinkles the thick mucosa at this level so that the fully occluded lumen takes on a stellate configuration. |
| Numerous platelets appeared in the lumen, some of which showed signs of degeneration with swelling and rarefaction. |
| Four tunnels off the lumen of the proventriculus of the carpenter bee, Xylocopa virginica virginica, have been discovered. |
| The tumors located centrally were polypoid, protruding into the lumen of the bronchus and narrowing the lumen. |
