coelom

"The school located the lost backpack in the main office. "

"During surgery, the doctor carefully examined the peritoneum, the membrane lining the abdominal cavity, to check for any signs of infection. "

"The dentist found a small cavity in my tooth. "

"The meeting was suspended for lunch."

"The teacher filled the bottle with water. "

"The delicate tissue paper wrapped the fragile antique doll. "

"Condoms are designed to protect against sexually-transmitted diseases."

"the within appeal"

"There are eight planets in the solar system."

"My grandmother took a digestive enzyme supplement to help with her digestion. "

"A cat is an animal, not a plant. Humans are also animals, under the scientific definition, as we are not plants."

"After the rain, the robin searched for an earthworm in the wet garden. "