English name: Black rat Scientific name: Rattus rattus Familia: Muridae Classis: Mammalia Phylum: Chordata (subphylum vertebrata) Regnum: Animalia
The alternate wave-like contractions of longitudinal and circular muscles (= peristaltic movement) in the intestine wall are responsible for the flow of food particles in the lumen. ad 4 Mucosa: crypts of Leiberkuhn with germination epithelium
