Caution! The site can't guarantee, that text has age permission. The site is not recommended, if you are less than 18 years old.
The site shows example sentences for English words. How the word or phrase could be used in a sentence?
" ... The part we want in order to make catgut comes mostly from the submucosa and the externa layers. These two layers contain the collagen, which is what we’re looking for. Collagen is found throughout the bodies of mammals and some other vertebrates. Wherever structural strength and elasticity is required in soft tissue, you may find collagen there. Skin, for instance; strong and elastic. The intestines also need to be strong and elastic for when we eat a lot of food, in order for the intestines to stretch without bursting, and then to contract back to normal size after food passes. This collagen is made up of strong, stretchy fibers. ... "