Definition of guano. : a fertilizer containing the accumulated excrement of seabirds or bats; broadly : excrement especially of seabirds or bats.
This is a cross section through the small intestine. The tall, vertical cells seen at the top of the tissue are columnar cells (one is shown - red arrow), which make up simple columnar epithelium (the cells at the bottom of the image are connective tissue, which will be discussed later). Since columnar cells are quite thick, they do not readily allow passive diffusion.
The type of epithelial cells lining the small and large intestines  are simple columnar. However, at the inferior part of the rectum,  it changes to stratified squamous epit â¦ helium. 1 person found this useful.plit and merge into it. Answer by Nithya Venkat. Confidence votes 414. Enjoy living life on Planet Earth! Transitional epithelium lines the lumen of the ureter. The transitional epithelium is a type of tissue that has multiple layers of epithelial cells that can contract and expand.