part of part of has part Homo sapiens intestinal villus http://upload.wikimedia.org/wikipedia/commons/3/38/Small_intestine_low_mag.jpg intestinal villus layer MA:0001563 TAO:0005125 small intestine villus intestinal villi enteric villus NCIT:C33874 villus intestinalis (intestinum tenue) SCTID:23230007 villi intestinales villus ZFA:0005125 enteric villous BTO:0003121 enteric villi UMLS:C1519988 in mammals, villi are (largely?) absent from the large intestine, so we treat this as equivalent to small intestinal villus. small/large subdivision may not make sense for all species for which this is present (see ZFA). Note that VHOG quotes ISBN:978-0030223693 as suggesting there are some villi in the large intestine The tiny hair-like projections that protrude from the inside of the small intestine that contain blood vessels that capture digested nutrients that are absorbed through the intestinal wall; the villi increase the absorptive surface area of the small intestine by approximately 30-fold. UBERON:0001213 EMAPA:35784 FMA:15072 villi intestinales intestinal villus Wikipedia:Intestinal_villus intestinal epithelium blood vessel organ component layer striated border microvillus layer